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Reusable spacecraft

A reusable spacecraft is a launch vehicle or orbital vehicle engineered to return to Earth substantially intact after completing its mission, allowing for refurbishment and relaunch multiple times, thereby reducing the cost of space access compared to expendable systems that are discarded after a single use. This design contrasts with traditional expendable rockets by emphasizing recovery techniques such as powered landings, parachutes, or gliding reentries to preserve major components like boosters, stages, or orbiter vehicles. The concept aims to make spaceflight more economically sustainable, enabling frequent missions for satellite deployment, crew transport, and scientific exploration. The pioneering example of reusable spacecraft technology was NASA's , initiated in 1972 and operational from 1981 to 2011, which marked the world's first fully reusable orbital vehicle system. The , along with its solid rocket boosters, was designed for repeated use, completing 135 missions and carrying 355 unique astronauts (many on multiple flights), deploying major telescopes like Hubble, and assembling the . Despite achieving significant milestones, the program faced challenges including the loss of two orbiters ( in 1986 and in 2003) and ultimately retired due to high maintenance expenses and evolving priorities. Its legacy influenced subsequent developments by demonstrating the feasibility of recoverable heat shields, main engines, and landing systems akin to . In the , private companies have advanced reusability toward greater efficiency and scale, with SpaceX's rocket representing a breakthrough in partial reusability since its first successful booster landing in 2015. The 's first stage, powered by nine Merlin engines, routinely lands on drone ships or ground pads for refurbishment, achieving over 570 launches as of November 2025 and individual boosters flying up to 31 times, which has slashed launch costs by up to 65% and enabled high-cadence operations like constellation deployments. Building on this, SpaceX's system, a fully reusable two-stage vehicle under development as of 2025, incorporates stainless-steel construction for rapid turnaround and aims to carry 150 metric tons to , with test flights demonstrating progress toward booster catch mechanisms and planning for in-orbit refueling demonstrations. Meanwhile, Blue Origin's rocket, which conducted its second flight in November 2025, features a reusable first stage designed for at least 25 missions via vertical landing on ocean platforms, supporting NASA's Mars missions and heavy-lift capabilities. These advancements have transformed the by fostering a competitive landscape where reusability drives down barriers to entry, supports sustainable exploration goals like NASA's , and paves the way for routine to the Moon and beyond. Ongoing challenges include enhancing turnaround times, improving thermal protection for hypersonic reentries, and scaling production to meet growing demand for commercial and governmental payloads.

Overview

Definition and Principles

Reusable spacecraft are launch vehicles or orbital systems engineered for multiple missions, involving recovery after each flight, refurbishment, and subsequent relaunch, in contrast to expendable systems that are discarded after a single use. This design approach aims to amortize development and costs across numerous operations, fundamentally shifting access from a high-cost, one-time endeavor to a more sustainable model. Key principles of reusability distinguish between partial and full implementations. Partial reusability recovers and reuses select components, such as first-stage boosters or engines, while discarding others like upper stages or fairings. Full reusability, by contrast, entails recovering and reflights the entire vehicle, including all stages and payloads interfaces, to maximize efficiency but requiring advanced recovery mechanisms; however, as of 2025, full reusability remains aspirational with no operational systems, though under development in projects like SpaceX's . Core metrics evaluating reusability include —the duration from landing to next launch—and cost per launch, which decreases with increased reuse cycles by spreading fixed costs. These principles prioritize operability, such as simplified maintenance protocols, over raw performance to achieve economic viability. NASA's early visions for reusability emerged in the , driven by the need to reduce the escalating costs of space access following the onset of the in 1957, with studies building on technologies to explore reusable concepts for lower per-mission expenses through high-volume operations. The basic lifecycle of a reusable spacecraft encompasses launch, where the vehicle ascends to via ; the mission phase, involving deployment or orbital operations; reentry, a controlled atmospheric descent managing thermal and aerodynamic stresses; recovery, through methods like runway landing or vertical ; and post-flight processes including , refurbishment, and upgrades to prepare for relaunch. For instance, the demonstrated partial adherence to this cycle, recovering its orbiter and boosters for reuse after each mission.

Advantages and Limitations

Reusable spacecraft offer significant advantages in reducing the overall cost of space access by amortizing and production expenses across multiple missions, with aspirational goals of launch cost reductions up to 100 times compared to expendable systems. This reusability enables higher launch cadences, allowing operators to conduct more frequent missions and respond rapidly to market demands, such as the growing sector. Additionally, reusability promotes by minimizing the need for new manufacturing, thereby conserving resources and reducing environmental impacts from production and disposal of launch hardware. However, these benefits come with substantial limitations, primarily stemming from the complexity required to design vehicles capable of surviving launch, orbital operations, reentry, and . This complexity often increases vehicle mass by 10-15% due to added protective systems for reentry and landing, which can reduce capacity and overall efficiency. Upfront development costs are markedly higher, typically ranging from $500 million to $2 billion, owing to the need for , , and technologies. Refurbishment between flights introduces significant downtime, often lasting 2-3 months for critical components like engines, involving thousands of labor hours for inspection, repair, and recertification. Reliability risks are also heightened by cumulative , with attrition rates around 5% per flight potentially shortening vehicle lifespan and necessitating frequent replacements. Quantitative analyses indicate that reusability becomes economically viable only after 10-20 flights per vehicle, depending on refurbishment costs and flight rates, as this threshold allows recovery of the elevated initial investments. At lower utilization, such as fewer than 15 flights annually across a fleet, reusable systems may not outperform expendables due to persistent operational overheads. Broader implications highlight reusability's potential to scale mass access to space, fostering new markets like frequent satellite deployments, while its challenges may confine it to niche, high-volume applications where demand justifies the complexity.

Historical Development

Early Concepts (Pre-1980s)

The concept of reusable spacecraft emerged in the early amid visionary ideas for space travel, with pioneers like advocating for rocket designs that could enable repeated use to make interplanetary exploration feasible. In his 1923 book Die Rakete zu den Planetenräumen, Oberth outlined theoretical frameworks for liquid-fueled rockets, including concepts for reusable vehicles that would reduce the need for expendable hardware through recoverable stages, influencing subsequent rocketry developments. Similarly, proposed reusable "ferry" rockets in the 1950s, envisioning winged orbital vehicles for transporting crews and cargo to space stations, as detailed in his 1952 magazine series, where a three-stage system featured recoverable upper stages for lunar and planetary missions. The Cold War intensified these ideas, as the U.S.-Soviet demanded cost-effective means to sustain orbital presence for military reconnaissance and national prestige, prompting studies on reusability to lower per-launch expenses amid escalating budgets. Early economic analyses, such as those by in 1971 on the Thrust-Augmented Orbiter System (TAOS), projected up to 90% cost reductions per flight compared to expendable vehicles like the , assuming high flight rates and refurbishment efficiencies, though breakeven required hundreds of missions. 's Associate Administrator George Mueller further emphasized in 1969 that reusability could achieve 95–98% savings, dropping costs from $1,000 per pound to orbit to $20–$50, driving policy shifts toward sustainable spaceflight architectures. Key experimental efforts in the late 1950s and 1960s tested reusability principles through suborbital vehicles, with the X-15 program (–1968) serving as a pioneering for and recovery. Jointly operated by , the U.S. Air Force, and the , the X-15 was air-launched from a B-52, reached altitudes up to 108 km, and landed on runways after 199 flights, demonstrating thermal protection and pilot control for reusable winged craft, which informed later orbital designs. Complementing this, 's lifting body research in the 1960s, starting with the unpowered M2-F1 prototype in 1963, explored wingless reentry vehicles that generated lift through their shape for precise horizontal landings without wings, validating concepts for recoverable spacecraft amid high-speed atmospheric return. By the 1970s, these foundations culminated in NASA's , following the selection of the delta-wing orbiter design in 1971 and approval by President Nixon on January 5, 1972, which prioritized a winged orbiter for horizontal runway landings to maximize reusability and operational flexibility. Influenced by prior studies and requirements for polar launches and large payloads, the configuration evolved from fully reusable two-stage concepts to a partially reusable system with solid rocket boosters and an expendable external tank, prioritizing cost control within a $5.5 billion development budget while aiming for routine access to space. Von Braun's earlier ferry visions continued to echo in these plans, underscoring reusability as essential for long-term space infrastructure like stations and beyond.

Shuttle Era and Initial Operations (1980s–2010s)

The , operated by from 1981 to 2011, represented the first operational reusable spacecraft system, completing 135 missions to . The core design featured a reusable orbiter vehicle capable of carrying up to eight astronauts and significant cargo, launched vertically with the aid of two reusable solid rocket boosters (SRBs) that provided about 83% of the initial thrust, and a disposable external tank for . The SRBs were recovered from Ocean after each launch, refurbished, and reused, while the orbiter glided to a horizontal runway landing, enabling partial reusability that aimed to reduce costs compared to expendable rockets. The program's early successes were overshadowed by two catastrophic accidents that profoundly influenced perceptions of reusable spacecraft safety and economics. On January 28, 1986, during , the orbiter exploded 73 seconds after launch due to the failure of an seal in the right SRB, caused by cold temperatures, resulting in the loss of all seven crew members and a 32-month grounding of the fleet. This exposed vulnerabilities in the reusable SRB design and refurbishment processes, leading to redesigned joints, stricter launch criteria, and a shift away from using the for routine deployments to prioritize safety. Similarly, on February 1, 2003, the orbiter disintegrated during reentry on after foam insulation debris from the external tank damaged its thermal protection system during ascent, killing all seven crew and grounding the program for 29 months. The incident highlighted ongoing risks in reusable maintenance, prompting extensive inspections and repairs, and accelerating the decision to retire the fleet by 2010. Parallel efforts in the Soviet Union and the United States explored alternative reusable architectures during this era. The Soviet Buran program culminated in a single uncrewed orbital flight on November 15, 1988, launched atop the expendable Energia rocket; the orbiter completed two automated orbits and landed autonomously on a runway after 3 hours and 25 minutes, demonstrating glider-like reusability without a crew. However, the program was canceled in 1993 following the Soviet Union's dissolution, with the Buran vehicle later destroyed in a 2002 hangar collapse. In the U.S., NASA pursued next-generation reusable launch vehicles through prototypes like the Lockheed Martin X-33 and Orbital Sciences X-34, intended to test single-stage-to-orbit technologies such as metallic thermal protection and aerospike engines; the X-33, a half-scale VentureStar demonstrator, faced composite tank failures and cost overruns exceeding $1 billion before cancellation in March 2001. Complementing these, McDonnell Douglas's Delta Clipper (DC-X) conducted 12 suborbital test flights from 1993 to 1996 at White Sands Missile Range, successfully validating vertical takeoff, hover, and landing maneuvers with a composite structure and hydrogen-oxygen engines, achieving rapid turnaround simulations in under a day. Despite these innovations, operational challenges plagued reusable spacecraft viability, particularly with the . Refurbishment demands were intensive: each orbiter required tile inspections and replacements, thermal protection system overhauls, and SRB disassembly, contributing to an average per-flight cost of approximately $450 million in the program's , far exceeding initial projections of under $10 million. The fleet's flight remained limited to 4–8 missions annually due to these turnaround times, which often spanned months, and safety-imposed delays, averaging just 4.5 flights per year across the 30-year lifespan. These factors underscored the trade-offs of partial reusability, where and offset only a fraction of hardware costs. The Shuttle's retirement in July , following , marked the end of U.S. government-operated crewed orbital flights for nearly three years, creating a reliance on Russian vehicles for access to the at costs exceeding $50 million per seat. This gap, lasting until 2014, highlighted the limitations of legacy reusable systems and spurred a pivot toward commercial alternatives to restore domestic capabilities.

Modern Commercial Era (2010s–Present)

The modern commercial era of reusable spacecraft, beginning in the , marked a pivotal shift toward , driven by cost reduction imperatives and ambitious visions for . Companies like pioneered practical reusability with the rocket, achieving the first successful landing of an orbital-class booster on December 21, 2015, at 1 in , which demonstrated the feasibility of propulsive recovery for first stages. By August 2025, had completed over 400 successful booster landings, including 400 on autonomous drone ships alone, enabling rapid turnaround and significantly lowering launch costs through repeated reuse—some boosters flew up to 30 missions. This era's hallmark was iterative development, exemplified by 's program, where prototypes underwent multiple suborbital tests in 2023–2024, culminating in the first orbital flight attempts in 2024, such as Integrated 4 on June 6, which achieved a soft ocean landing for the Super Heavy booster despite challenges with the upper stage. By October 2025, had conducted 11 integrated test flights, with six successes, allowing to refine designs rapidly for full reusability, including catcher arm recoveries planned for future iterations. Beyond SpaceX, other private entities pursued reusability in niche domains, often facing technical and regulatory hurdles. Blue Origin's New Shepard, a suborbital vehicle, achieved its first fully reusable flight on November 23, 2015, with both the booster and crew capsule landing vertically, paving the way for over 30 missions by mid-2025, including the 31st flight in April and human spaceflights carrying tourists and researchers. Blue Origin also advanced orbital reusability with its New Glenn heavy-lift rocket, which completed its maiden flight in early 2025 and a second successful flight in November 2025, recovering the first stage via vertical landing on an ocean platform. Rocket Lab advanced partial reusability for its small-lift Electron rocket, announcing recovery plans in 2019 and conducting initial parachute-assisted ocean recoveries in 2020–2021; by 2024, the company refurbished a recovered first stage for potential reflights, though full operational reuse remained in testing amid a focus on the larger, more reusable Neutron vehicle targeted for 2025 debut. Sierra Space's Dream Chaser, a reusable spaceplane derived from the Sierra Nevada Corporation's heritage designs, encountered persistent certification delays for NASA's Commercial Resupply Services; as of September 2025, its inaugural ISS mission was postponed beyond late 2025 into 2026 or later, with NASA modifying contracts to remove docking requirements due to integration issues. Policy and international developments further catalyzed this era's progress. NASA's , through its 2014 Commercial Crew Transportation Capability contracts awarded to and , incentivized reusable systems by funding certified vehicles, leading to the first reused Crew Dragon mission in 2020 and emphasizing cost-effective operations. In , initial studies for partial reusability on the launcher—explored in the mid-2010s—were abandoned by in favor of a non-reusable design to meet development deadlines and budgets, shifting focus to next-generation reusable concepts like for the . By the 2020s, reusability trends emphasized scalability and high cadence, with achieving over 100 launches in 2025 alone—reaching the 100th mission by August—primarily for deployments, underscoring the economic viability of routine booster recoveries. This surge supported broader ambitions, particularly 's pursuit of full-stack reusability with to enable Mars colonization, where and minimal refurbishment—often within weeks—contrasted earlier eras' lengthy overhauls.

Design and Engineering

Atmospheric Reentry Technologies

Atmospheric reentry poses severe challenges to reusable spacecraft due to the extreme conditions encountered as vehicles transition from orbital velocities to subsonic speeds. Upon entering Earth's atmosphere from , spacecraft typically reach hypersonic speeds of up to 28,000 km/h, generating intense through friction and compression of atmospheric gases. This process ionizes air molecules, forming a sheath that envelops the and can disrupt communications while contributing to loads exceeding 1,600°C in peak regions. The at the , a critical metric for , arises primarily from convective and can be approximated by q = 0.5 \, \rho \, v^3 \, C_h where q is the heat flux, \rho is the local atmospheric density, v is the vehicle's velocity, and C_h is the heat transfer coefficient, which depends on factors like surface catalysis and boundary layer properties. These physics necessitate robust engineering to ensure structural integrity and reusability without catastrophic failure. Thermal protection systems (TPS) are essential for dissipating or insulating against reentry heat while enabling multiple missions. Ablative TPS, such as NASA's Phenolic Impregnated Carbon Ablator (PICA), function by pyrolyzing and eroding to form a protective char layer that absorbs and radiates heat; this material, originally developed for the Stardust mission, is employed on SpaceX's Dragon capsules for their ablative heat shields. In contrast, reusable non-ablative TPS prioritize durability over mass loss, exemplified by the Space Shuttle's silica-fiber tiles (LI-900), which consist of 99.8% pure silica in a low-density matrix to provide radiative cooling and insulation up to 1,260°C without degrading significantly after exposure. For advanced reusable concepts, metallic heat shields offer structural integration; SpaceX's Starship employs a stainless steel body covered by thousands of hexagonal ceramic heat shield tiles, designed for rapid inspection and replacement to support frequent reflights, with 2025 test flights demonstrating improved tile sealing to prevent oxidation and enhance reusability. Aerodynamic design plays a pivotal role in managing deceleration and heat distribution during reentry. Blunt body shapes, foundational to modern entry vehicles via NASA's blunt body theory developed in the 1950s, generate a detached that dissipates away from the vehicle, minimizing direct to the structure compared to slender designs. Reusable spacecraft often adopt winged configurations, like the Space Shuttle's delta-wing orbiter, which enable lift generation for a reentry , allowing cross-range control and reduced g-forces over ballistic profiles used in capsules that descend steeply with minimal lift. Skip reentry profiles further optimize performance by modulating to "skip" off denser atmospheric layers, extending range, distributing heating over time, and enabling precise landing footprints, as demonstrated in NASA's capsule design. Validation of reentry technologies relies on ground-based and in-flight testing to replicate hypersonic conditions. Arc jet facilities, such as those at NASA's , simulate plasma sheaths and heat fluxes up to 10 MW/m² by passing high-enthalpy air through electric arcs, allowing material qualification under controlled exposures. Wind tunnel simulations, including hypersonic tunnels, assess aerodynamic stability and drag coefficients at numbers exceeding 20, informing shape optimizations before full-scale integration. Flight tests provide real-world ; the U.S. Air Force's X-37B Orbital Test Vehicle has conducted multiple autonomous reentries since 2010, demonstrating reusable winged-body performance through deorbit burns and unpowered landings after missions lasting up to 908 days.

Landing and Recovery Methods

Reusable spacecraft employ diverse landing methods to achieve controlled descent and touchdown after surviving atmospheric reentry stresses, ensuring vehicle integrity for potential reuse. These methods prioritize precision, minimal damage, and rapid recovery to support . Vertical propulsive landing, as demonstrated by SpaceX's first stage, relies on engine reignition for deceleration using retro-thrust from nine engines. After stage separation, the booster performs a boost-back maneuver to return toward the launch site or ocean, followed by a reentry burn to manage heat loads and a final burn that culminates in a hover-slam, where the vehicle rapidly decelerates from low altitude without sustained hovering due to engine throttle limits. Horizontal runway landing, utilized by NASA's Space Shuttle orbiter, involves unpowered post-reentry, with pilots managing energy via aerodynamic control surfaces to align with runways like the 15,000-foot facility at . This method, validated through the 1977 with the orbiter, allows for conventional aircraft-style touchdown using nose gear and parachutes for deceleration. Parachute-assisted splashdown, applied to SpaceX's Crew Dragon capsule, deploys drogue and main parachutes at approximately 5,000 feet altitude for a soft impact off coasts, such as near Pensacola, followed by immediate stabilization to vent hypergolic propellants. Recovery operations extend landing success by minimizing post-touchdown damage and expediting turnaround. For boosters, autonomous drone ships positioned in serve as offshore platforms, equipped with GPS-stabilized decks to capture vertical landings and facilitate towing back to port. Helicopter capture techniques, initially conceptualized by in the 1960s for capsules and revived by for fairing halves via drop tests from helicopters like Mr. Steven, as well as by for booster parachutes using a , enable mid-air snagging to avoid water exposure. Net or arrestor systems for boosters, such as proposed cable-based setups with onboard hooks, provide ground-based halting for vertical descents, enhancing robustness in constrained sites. Guidance during final descent integrates (GPS) receivers for absolute positioning with inertial measurement units () in an for relative , , and data, processed via onboard flight computers for real-time corrections. Kalman filtering fuses these inputs to handle GPS signal degradation near the horizon, supporting pinpoint accuracy. Failure modes, including the April 2015 Falcon 9 attempt where excessive tilt from lateral velocities around 35 m/s and inadequate cold gas thruster correction caused engine shutdown and explosion on the drone ship deck, underscore the need for redundant stabilization. Key performance metrics emphasize precision and margin safety; Falcon 9 achieves landing dispersions under 10 meters on drone ships, enabling reliable reuse, while propellant reserves for the hover-slam—typically equivalent to 15 seconds at full single-engine throttle—provide buffer for trajectory adjustments and soft touchdown velocities below 2 m/s.

Refurbishment and Maintenance Processes

Refurbishment and maintenance processes for reusable spacecraft begin immediately after , involving rigorous protocols to ensure structural and operational readiness for subsequent missions. Non-destructive testing methods, such as ultrasonic inspections, are employed to detect cracks and subsurface defects in critical components like metallic structures and heat shields without causing damage. examinations are routinely used to assess engine interiors for wear, erosion, or debris, particularly in systems like the engines on boosters, where post-landing inspections have identified issues such as thrust fluctuations requiring targeted repairs. Additionally, data from onboard flight sensors is analyzed to evaluate performance metrics, fatigue accumulation, and , informing and compliance with safety standards set by the (FAA) and . Following inspections, refurbishment steps focus on restoring the vehicle through targeted interventions. Components showing wear, such as tiles on the , are replaced or repaired, with early missions requiring extensive tile inspections and replacements numbering in the thousands per flight. Cleaning processes remove soot and residue from reentry, while recoating protects surfaces against ; software updates address any flight-derived anomalies to enhance and reliability. For modern systems like the , these steps include engine testing and minor hardware swaps, enabling an average turnaround time of approximately 25 days by late 2024, extending into 2025 with continued optimizations. Overall timelines vary, with Space Shuttle processing averaging around 50 working days in later missions, though full flows often extended to 3-6 months due to and . Cost factors in these processes balance labor-intensive manual inspections against emerging to achieve efficiency. Traditional approaches, like the Space Shuttle's tile-by-tile examinations, relied heavily on human technicians, contributing to high labor costs and extended timelines. In contrast, facilities such as SpaceX's Starbase incorporate robotic systems for tasks like structural assessments and component handling, reducing refurbishment expenses—estimated at under $1 million per booster by the early —and aiming to minimize human intervention. Certification standards from the FAA require proof of structural durability through factors of safety (e.g., 1.5 ultimate for metallic parts) and service-life margins of at least 4.0, ensuring all maintenance aligns with 14 CFR Parts 431 and 437 for reusable launch vehicles. The evolution of these processes reflects a shift toward rapid reusability, from the Space Shuttle's labor-heavy overhauls lasting 6-12 months for major modifications to contemporary goals of near-instantaneous turnaround. Early Shuttle missions demanded up to 187 days between flights due to extensive tile work and systems integration, but efficiencies reduced this to under 60 days by the mid-1980s. SpaceX has advanced this further, with Falcon 9 boosters achieving record turnarounds of 9-13 days by 2025, driven by streamlined inspections and modular designs. For Starship, the target is 24-hour or less reflights, leveraging automated health checks and catch mechanisms to enable immediate post-landing preparation, potentially revolutionizing launch cadence.

Types and Applications

Suborbital Reusable Vehicles

Suborbital reusable vehicles, also known as suborbital reusable launch vehicles (SRLVs) or SRVs, are designed to carry payloads or passengers into above the —approximately 100 km altitude—without achieving orbital velocity, following a ballistic trajectory that ascends and descends back to Earth. These vehicles emphasize full reusability, enabling rapid recovery, refurbishment, and reflights to support frequent, cost-effective access to the edge of . Prominent examples include Blue Origin's , a vertical-launch system that reaches peak altitudes of over 100 km for an approximately 11-minute flight providing several minutes of microgravity, and Virgin Galactic's , an air-launched that glides to a after a rocket-powered ascent. Key technologies in these vehicles prioritize simplicity and reusability for short-duration missions. employs a liquid bipropellant BE-3PM engine using and , which produces only as exhaust and enables precise vertical landings through engine reignition. In contrast, utilizes an air-launch system, where the is released from a carrier aircraft such as VMS Eve at around 15 km altitude before igniting its hybrid rocket motor, combining solid fuel () with liquid oxidizer for controlled burns up to 70 seconds. This hybrid propulsion offers advantages in safety and throttleability, facilitating reusability with minimal refurbishment between flights. These vehicles serve diverse applications, including scientific research through short bursts of microgravity for experiments in , physics, and , as well as space offering civilians brief experiences of and Earth's curvature. For instance, accommodates human-interactive payloads and passenger seats, while has hosted paying tourists on suborbital joyrides. Additionally, they act as technology demonstrators, testing reentry and recovery methods that inform scalable designs for orbital systems. By 2025, passenger flights have become routine for , with conducting multiple crewed missions annually. As of November 2025, has completed 36 flights since its first in 2015, including 15 crewed human spaceflights, demonstrating high reusability with boosters landing successfully on nearly all missions. , operational since 2018, has achieved 12 spaceflights with its Unity vehicle, with operations pausing after the final flight in June 2024 to transition to next-generation Delta-class spaceplanes for commercial operations resuming in 2026.

Orbital Reusable Spacecraft

Orbital reusable spacecraft represent a class of vehicles engineered to achieve (), perform extended missions, and return intact for refurbishment and reflights, primarily facilitating crew and cargo transport to orbital destinations such as the (ISS). These systems emphasize cost-effective access to space by incorporating robust thermal protection systems (), propulsion for precise orbital adjustments, and interfaces for integration with space infrastructure, enabling repeated utilization without full reconstruction. Unlike suborbital vehicles, they sustain operations for weeks or months, supporting scientific research, logistics, and human presence in orbit. Prominent examples include the Crew Dragon, which achieved its first crewed orbital mission in 2020 and has since conducted multiple NASA-contracted flights to the ISS, carrying up to seven astronauts with a pressurized volume of 9.3 cubic meters. The CST-100 Starliner, designed for up to 10 reuses with a six-month turnaround and capacity for seven crew members, faced delays in its crewed certification due to propulsion anomalies persisting into , with operational missions postponed beyond initial targets. Similarly, Sierra Space's Dream Chaser cargo spaceplane, capable of over 15 missions and delivering up to 3,600 kilograms of , is slated for its inaugural ISS resupply flight in 2026 under NASA's Commercial Resupply Services-2 contract. Key design features prioritize mission efficiency and safety, including advanced docking mechanisms such as the Docking System on , which enables autonomous attachment to the ISS forward port using laser-based sensors and thrusters. Life support systems, like the Environmental Control and Life Support System (ECLSS) in , recycle air and water to support extended reusability, while Starliner's integrated abort system ensures crew safety during orbital phases. Orbital maneuvers rely on low-propellant thrusters—such as 's 16 engines (each 400 N thrust)—to perform , station-keeping, and deorbit burns with minimal fuel expenditure, preserving resources for multiple flights. employs variable-thrust thrusters for precise positioning during berthing via the ISS's robotic arm. These spacecraft apply to critical orbital tasks, including ISS crew rotation and resupply, where Crew Dragon has executed over a dozen missions to ferry astronauts and cargo, sustaining station operations since 2020. They also support satellite deployment from pressurized bays or external mounts, enhancing access to constellations. Looking ahead, such vehicles serve as precursors for lunar and planetary missions by demonstrating reusable architectures compatible with , including propellant-efficient transfers and docking standards for cislunar gateways. Significant challenges include mitigating radiation exposure on TPS materials, as prolonged orbital stays subject ablative heat shields to cosmic rays and particles, necessitating self-diagnostic composites to detect degradation without disassembly. Orbital decay management demands efficient propulsion to counteract atmospheric drag in , allowing rapid return trajectories while avoiding uncontrolled reentry; for instance, Crew Dragon uses targeted burns to align ground tracks for recovery. These hurdles underscore the need for resilient, verifiable systems to ensure safe, repeated operations.

Reusable Launch Vehicle Components

Reusable launch vehicle components are the modular elements of systems designed for multiple uses, primarily focusing on the ascent phase to deploy into . These components, such as boosters and fairings, incorporate materials and mechanisms that withstand launch stresses and enable for refurbishment, significantly reducing costs compared to expendable alternatives. Key innovations include heat-resistant coatings, precise guidance for landing, and automated separation systems, which have evolved from early prototypes to operational hardware by the mid-2020s. First-stage boosters form the core of reusable launch vehicles, providing the initial to escape Earth's atmosphere before separating and returning for reuse. The Falcon 9 Block 5 booster exemplifies this, featuring grid fins for steering during descent and landing legs for vertical recovery on drone ships or land pads, achieving a reusability success rate exceeding 90% in missions by 2025. Individual Falcon 9 boosters have demonstrated high flight heritage, with some completing up to 31 missions, allowing for rapid turnaround times of weeks between flights after inspections and minor repairs. Emerging designs extend reusability to upper stages, such as second stage, which incorporates heat shields and retro-propulsion for potential orbital refueling and reentry, though full operational reuse remains in testing as of 2025. Payload fairings protect satellites during ascent but are increasingly recovered to enhance overall system reusability. SpaceX pioneered fairing recovery using parachutes for in the , followed by retrieval with nets on recovery vessels, enabling refurbishment and in subsequent launches; by 2025, recovered fairings have been reflown multiple times, cutting costs by an estimated 10-20% per mission. These composite structures, made from lightweight carbon fiber, are designed to separate cleanly via pyrotechnic bolts and include GPS beacons for precise tracking during . Integration of reusable components with involves precise stacking, launch, and separation sequences to ensure payload integrity. Boosters and upper stages are assembled vertically in hangars, with fairings enclosing the before liftoff; separation occurs via pneumatic pushers or springs at predetermined altitudes, minimizing vibrations to the upper . For full reusability, concepts like cross-feed—transferring fuel from the first stage to the upper stage during ascent—have been proposed and tested in simulations, reducing the mass discarded at staging and enabling both stages to return intact, as explored in NASA's advanced studies. Beyond SpaceX systems, other vehicles incorporate similar components. The rocket plans partial reusability with a first-stage booster designed for downrange recovery starting in 2026, using aerospike engines for efficiency and parachutes for deceleration. Blue Origin's , which achieved first-stage recovery via propulsive landing on its second flight in November 2025, features reusable engines and fairings deployable for missions, aiming for 25 flights per booster over its lifespan. These examples highlight a shift toward standardized, across the industry, prioritizing durability and minimal refurbishment to support frequent launches.

Current and Emerging Systems

Operational Vehicles

Operational reusable spacecraft represent the forefront of technology, enabling frequent and cost-effective access to through proven recovery and refurbishment cycles. As of November 2025, these vehicles have accumulated thousands of flights, demonstrating high reliability with success rates exceeding 99% for major systems. Key examples include orbital launchers from , suborbital tourism vehicles from and , and specialized military platforms like the U.S. Space Force's X-37B. SpaceX's and rockets have established routine reusability, with the achieving 571 successful launches out of 574 attempts, yielding a 99.47% success rate. By November 2025, has conducted 148 launches in the year, while the maintains a perfect 11/11 success record across its flights. Boosters have been successfully landed and recovered over 550 times, with individual units flying up to 31 missions, significantly reducing costs and enabling high-cadence operations such as deploying over 9,000 satellites to . The offers a capacity of up to 22,800 kg to , supporting a wide range of commercial, government, and constellation missions without major failures in 2025. Complementing the Falcon family, SpaceX's Crew Dragon capsule has conducted over 20 crewed missions by November 2025, including rotations to the and private ventures like missions. Notable 2025 flights include Crew-10 in March, Crew-11 in August, and Axiom Mission 4 in June, with the vehicle demonstrating 100% success in operations and the ability to carry up to seven astronauts or equivalent cargo. Crew Dragon's reusability allows for rapid turnaround, with capsules refurbished for multiple flights, enhancing 's crew transport reliability. Blue Origin's suborbital vehicle has completed 36 flights as of October 2025, including six crewed missions in the year, carrying 86 unique humans to the edge of . Operating from , it achieves a 100% success rate across its missions, with a flight rate of six to eight annually in 2025 and a capacity for six passengers plus research payloads. The system's vertical takeoff and landing design supports microgravity experiments and , with no significant anomalies reported. Virgin Galactic's , specifically , has executed 12 successful spaceflights by mid-2024, focusing on suborbital tourism with a capacity for four passengers and two pilots. While commercial operations paused in 2024 for fleet upgrades, the vehicle's track record includes over 30 total flights with 100% success in reaching space, emphasizing air-launched reusability for brief weightless experiences. The U.S. Space Force's X-37B Orbital Test Vehicle, built by , has completed eight missions by November 2025, with the eighth launch occurring in August and ongoing as a classified orbital platform. Accumulating over 4,200 days in space across its flights, it achieves full reusability through runway landings and supports experiments in high orbits, though payload details remain undisclosed due to its experimental and role. All missions have succeeded without public failures, underscoring its reliability for long-duration operations exceeding 900 days per flight.

Vehicles Under Development

SpaceX's Starship program aims for full reusability of both its Super Heavy booster and upper stage, with ongoing test flights demonstrating progress toward orbital operations and eventual Mars missions. As of November 2025, the vehicle has completed 11 test launches since 2023, including six successes, with the ninth flight on May 27, 2025, achieving a successful Super Heavy boostback burn and upper stage separation. Orbital attempts in 2024 and 2025 have highlighted challenges such as tile adhesion during reentry, prompting changes like a simplified variant for NASA's lunar lander requirements. NASA has selected as the Human Landing System, with development supported by over $2.9 billion in contracts, though timelines for crewed lunar landings remain targeted for the late 2020s amid technical risks including engine reliability and rapid turnaround refurbishment. Blue Origin's is a heavy-lift designed for partial reusability, featuring a recoverable first stage powered by seven methane-fueled engines, capable of delivering over 45 metric tons to . The vehicle conducted its in January 2025 and a second flight on November 13, 2025, successfully recovering the first stage via vertical landing on an ocean platform. Future launches are aligned to deploy Amazon's satellites, with development funded through Blue Origin's internal resources and partnerships, including a $3.4 billion U.S. contract for missions. The design supports at least 25 missions per first stage. Among other systems, Rocket Lab's rocket targets a partially reusable medium-lift capability with a debut flight rescheduled to mid-2026, following infrastructure completion at Launch Complex 3 in and $360 million in cumulative development spending through 2025. The design incorporates carbon composite structures and nine engines for reusability of the first stage via propulsive landing, supported by U.S. contracts exceeding $500 million for responsive launch demonstrations. Inversion Space's is an autonomous reentry for rapid global cargo delivery from orbit, building on the 2025 demonstrator mission, with its first orbital test planned for 2026 to validate precision deorbiting within one hour. Sierra Space's , intended for uncrewed ISS cargo resupply, has been delayed to a late-2026 free-flying demonstration after modified its $1.2 billion Commercial Resupply Services contract in September 2025, removing docking requirements due to propulsion certification hurdles. Firefly Aerospace's (formerly MLV), co-developed with , is a reusable medium-lift with a maiden launch targeted for the second half of 2026, bolstered by a $50 million investment in May 2025 and a $177 million CLPS in July 2025 for delivery. These projects benefit from partnerships, such as CLPS task orders awarded to and others for lunar lander missions, enabling technology maturation for while addressing risks like reentry heating and autonomous recovery through iterative testing and private funding exceeding $1 billion across the portfolio.

Retired, Proposed, and Canceled Projects

The , NASA's flagship reusable spacecraft initiative, was retired after its final mission, , on July 21, 2011, marking the end of 30 years of operations that included 135 flights to . The program's total cost reached approximately $209 billion from development through retirement, far exceeding initial projections due to frequent maintenance needs and safety upgrades following incidents like the and disasters. Similarly, the Soviet Union's Buran program, which aimed to develop a reusable orbiter comparable to the , conducted only one uncrewed flight in before being terminated in 1993 amid the dissolution of the USSR and funding shortages. Several ambitious reusable projects were canceled due to technical challenges and escalating costs. NASA's , which included the partially reusable and launch vehicles for returning humans to the Moon, was fully canceled in 2010 as part of a shift toward commercial partnerships and the . The X-33 , a cooperative NASA-Lockheed Martin effort for a reusable vehicle using aerospike engines, was terminated in early 2001 after $1 billion in spending, primarily because of unresolved issues with composite fuel tanks and metallic lithium coolant leaks. Airbus's Adeline concept, proposed in the mid-2010s as a reusable first-stage for Ariane rockets that would separate and fly back autonomously, advanced to feasibility studies but was not pursued beyond initial designs due to Europe's pivot toward the and later initiatives. The Skylon project, developed by since the 1980s with its hybrid air-breathing/rocket engine for a fully reusable , stalled after the company's bankruptcy in November 2024, leaving the concept unbuilt despite decades of engine testing. More recent proposals for reusable spacecraft remain unbuilt as of 2025. Boeing's Air Launched Sortie Vehicle, conceptualized for the U.S. , envisions a winged orbital vehicle air-launched from a modified C-17 Globemaster to enable rapid military deployments, with early studies emphasizing quick-turnaround reusability but no prototypes yet funded. Concepts for reusable nuclear thermal propulsion stages, explored in and white papers during the early 2020s, aim to enhance deep-space efficiency by recycling nuclear engines for multiple missions, though regulatory and safety hurdles have prevented hardware development. These retired and canceled projects highlight key lessons in reusable spacecraft development, particularly around cost overruns and technological gaps. The Space Shuttle's lifetime expenses underscored how partial reusability—reusing the orbiter but expending solid rocket boosters and external tanks—failed to achieve anticipated savings, with per-launch costs averaging $450 million due to extensive refurbishment. Technical challenges, such as the X-33's material failures under cryogenic conditions, revealed gaps in high-temperature composites and propulsion integration, prompting later industry shifts toward simpler propulsive landings in programs like Falcon 9. Overall, these efforts demonstrated that prioritizing operability and robust margins from the outset is essential to mitigate risks in reusability, influencing modern designs to emphasize rapid turnaround over complex winged reentry.

Impacts and Future Outlook

Economic and Environmental Effects

Reusable spacecraft have significantly influenced economic dynamics in the by driving down launch costs through repeated use of vehicle components, enabling broader access to for commercial and scientific missions. Historically, expendable launch vehicles cost over $10,000 per kilogram to , but reusability with systems like the has reduced this to approximately $2,500 per kilogram by amortizing hardware expenses across multiple flights. This cost trend has fueled the growth of the global economy, which reached $613 billion in 2024, with projections for continued driven by reusable technologies that lower for deployments and other applications. Additionally, the development and operation of reusable systems have created jobs in supply chains, including , refurbishment, and , amplifying economic impacts through multiplier effects in regions like Florida's area. Environmentally, reusable spacecraft mitigate some impacts of traditional launches by reducing the production of new hardware for each mission, thereby lowering overall emissions and resource consumption compared to expendable vehicles, which require full reconstruction per flight. For instance, lifecycle assessments indicate that reusable fleets using propellants can achieve 2–5 times lower carbon footprints than those using , primarily due to decreased needs and over multiple uses. They also contribute to orbital debris reduction by enabling fewer launches for the same volume, as recovered components avoid adding upper stages or boosters to space junk populations. However, recovery operations, such as powered landings and transport, introduce higher per-flight energy demands for refurbishment, potentially offsetting some gains in short-term . Case studies highlight these effects: SpaceX's reusable has lowered internal launch costs for satellites, making global broadband internet more affordable by reducing deployment expenses by up to 70–80% and enabling rapid constellation expansion. Similarly, Blue Origin's suborbital vehicle has advanced economics, contributing to a U.S. market projected to grow at a 37.1% compound annual rate through 2030, with ticket prices around $200,000–$1 million per seat fostering investment in experiential space access. Key metrics underscore investor appeal, with partial reusability offering quicker returns on investment through component recovery, while full reusability models promise up to 80% cost slashes, attracting in a sector valued at $6.89 billion for reusable vehicles in 2025.

Role in Space Exploration and Commercialization

Reusable spacecraft are poised to play a pivotal role in advancing human exploration beyond Earth orbit, particularly through enabling sustainable missions to Mars, the Moon, and deeper space. SpaceX's Starship system, designed as a fully reusable super heavy-lift vehicle, is central to plans for Mars colonization, where fleets of these spacecraft could ferry cargo and up to 100 astronauts per mission to establish self-sustaining habitats on the Red Planet. In the NASA Artemis program, reusable landers like SpaceX's Human Landing System variant of Starship will support the construction of lunar bases near the South Pole, allowing repeated crewed landings and resource utilization for long-term outposts. Furthermore, reusability enhances deep space capabilities by facilitating sample return missions and crewed vehicles like NASA's Orion spacecraft, which can perform high-speed re-entries from lunar vicinities, paving the way for probes with Earth-return options in future architectures. In commercialization, reusable spacecraft will drive the deployment of massive satellite networks and novel in-space industries. For instance, SpaceX's reusability has already enabled the rapid buildup of the constellation, exceeding 8,800 satellites as of November 2025 with plans for tens of thousands more to provide global broadband coverage. This technology supports in-orbit assembly and manufacturing, where reusable vehicles like those from In Orbit Aerospace allow frequent, low-cost resupply for constructing large structures such as modular satellites or habitats directly in space. is also set to expand from suborbital flights to orbital accommodations by the 2030s, with projects like Blue Origin's station leveraging reusable access to host extended stays and microgravity experiences for civilians. Looking to 2025–2030, reusability is projected to dramatically increase launch cadence, potentially supporting hundreds of annual flights globally and fostering international partnerships for shared infrastructure. The European Space Agency (ESA) is advancing reusable technologies through initiatives like the Themis program for recoverable boosters and collaborations with Avio on reusable upper stages, integrating with efforts like NASA's Artemis to enhance collective exploration goals. Current operational systems, such as Falcon 9, provide the foundation for this scaling. However, realizing this potential faces significant challenges, including regulatory frameworks ill-equipped for high-frequency operations and ensuring equitable global participation in space activities. U.S. policies, for example, impose outdated licensing requirements that slow the of frequent reusable flights, potentially hindering . Additionally, while reusability lowers barriers for wealthy nations and firms, disparities in technology access could exacerbate inequities, necessitating international agreements to promote inclusive benefits from .

References

  1. [1]
    Reusable Launch Vehicle - an overview | ScienceDirect Topics
    RLV (Reusable Launch Vehicle) means a launch vehicle that is designed to return to Earth substantially intact and therefore may be launched more than one time.
  2. [2]
    [PDF] REUSABLE LAUNCH VEHICLE - NASA Technical Reports Server
    Phase I of the RLV program consists of concept definition and technology development leading to a Phase II subscale flight demonstration vehicle, the X-33.
  3. [3]
    The Space Shuttle - NASA
    The Space Shuttle was the world's first reusable spacecraft, and the first spacecraft in history that can carry large satellites both to and from orbit.Missing: authoritative | Show results with:authoritative
  4. [4]
    Space Shuttle program | National Air and Space Museum
    The Space Shuttle, officially known as the Space Transportation System (STS), was the first reusable spacecraft to carry humans into orbit.Missing: definition | Show results with:definition
  5. [5]
    Falcon 9 - SpaceX
    Falcon 9 is a reusable, two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of people and payloads into Earth orbit and ...
  6. [6]
    With recent Falcon 9 milestones, SpaceX vindicates its “dumb ...
    Aug 28, 2025 · On Thursday, the rocket made its 30th flight, the first time a Falcon 9 booster has hit that level of experience. A decade in the making. These ...
  7. [7]
    SpaceX's Starship passes development rut, deploys first ... - Reuters
    Aug 26, 2025 · And Musk sees Starship, designed to be fully reusable, as core to fulfilling his goal of routinely ferrying humans to Mars.
  8. [8]
    New Glenn | Blue Origin
    a future where people and heavy ...
  9. [9]
    A Brief History of Space Exploration | The Aerospace Corporation
    The Space Shuttle was the first reusable spacecraft to carry people into orbit; launch, recover, and repair satellites; conduct cutting-edge research; and help ...<|separator|>
  10. [10]
    Halfway through 2025, SpaceX breaks Falcon records and struggles ...
    Jul 9, 2025 · Additionally, the Falcon 9 rocket itself achieved its 500th launch overall at the start of the third quarter of 2025 on the Starlink Group 10-25 ...
  11. [11]
    A Framework for Assessing the Reusability of Hardware (Reusable ...
    Dec 5, 2016 · Whether the hardware being considered for reuse is a launch vehicle (fully reusable), a first stage (partially reusable), or a booster engine ( ...
  12. [12]
  13. [13]
    [PDF] Horizontal Launch - NASA Technical Reports Server
    Directorate, calls for a 10x and ultimately a 100x scale engine and vehicle systems technologies ... and currently heads the Reusable Launch Vehicle Office at the ...
  14. [14]
    [PDF] Is It Worth It? The Economics of Reusable Space Transportation
    A reusable system developed and operated by the same company as the satellite constellation operator could serve to ensure availability of ETO transportation ...
  15. [15]
    [PDF] a framework for assessing the reusability of hardware (reusable rocket
    In simple terms, reuse or reusability can be defined as: the repeated use of a product. According to this simple definition, all rocket engines are reusable ...
  16. [16]
    None
    ### Economic Model Details: Reusable vs. Expendable Launch Vehicles
  17. [17]
    Thermal protection systems for space vehicles: A review on ...
    Several other pioneers in rocketry and space flight also wrote about this, including Tsiolkovskiy and Oberth as the concept of reusable space vehicles was ...
  18. [18]
  19. [19]
    [PDF] The Space Shuttle Decision - NASA
    ... Space Shuttle Decision NASA's Search for a Reusable Space Vehicle I by T A Heppenheirner p crn -(The NASA History Senes). Includes bihliographical references ...
  20. [20]
    [PDF] X-15: Frontiers of Flight - NASA
    Program management decided not to fly the X-15A-2 again, and to fly X-15-1 only for calendar year. 1968. The X-15 flew its last flight on 24 October of that ...<|control11|><|separator|>
  21. [21]
    [PDF] Wingless Flight - The Lifting Body Story - NASA
    ... Research Center with the M2-F1 lifting body, and I was spending most of my time developing and selling the supersonic lifting-body program to NASA ...
  22. [22]
    Space Shuttle History Resources - NASA
    From the first launch on April 12, 1981 to the final landing on July 21, 2011, NASA's space shuttle fleet flew 135 missions.The Space Shuttle · Space Shuttle Avionics... · Nasa Armstrong Flight...<|separator|>
  23. [23]
    NASA's space shuttle: The first reusable spacecraft
    Dec 11, 2017 · NASA's space shuttle was the world's first reusable spacecraft. It launched like a rocket and returned to Earth like a glider, landing like an airplane on a ...
  24. [24]
    What Caused the Challenger Disaster? - History.com
    Jan 25, 2018 · Seven lives were lost as communications failed in the face of public pressure to proceed with the launch despite dangerously cold conditions.
  25. [25]
    Space shuttle Challenger and the disaster that changed NASA forever
    Feb 1, 2022 · Satellite launches were shifted from the shuttle to reusable rockets. Additionally, astronauts were pulled off duties such as repairing ...
  26. [26]
    How the Columbia disaster changed the future of spaceflight - CNN
    Apr 13, 2024 · The disaster led directly to the decision to end the broader NASA space shuttle program, forcing the US space agency to rely on Russia for rides ...
  27. [27]
    The Space Shuttle Columbia Disaster – - Space Safety Magazine
    Its impact on US human spaceflight program, and the resulting decision to discontinue the Space Shuttle Program, was so dramatic that to this date NASA has not ...Debris Recovery · The Lost Crew · Consequences Of The Accident
  28. [28]
    Buran — The Soviet space shuttle that flew just once
    Dec 3, 2024 · Buran launched only once into space, on Nov. 15, 1988, and re-entered the atmosphere after two orbits, according to NASA. The spacecraft ...Missing: details | Show results with:details
  29. [29]
    The Forgotten Soviet Space Shuttle Could Fly Itself
    Apr 12, 2016 · Buran (Russian for snowstorm) made only one spaceflight. It orbited Earth on November 15, 1988, completing an uncrewed, 3 1/2-hour flight. The ...
  30. [30]
    Buran reusable shuttle - RussianSpaceWeb.com
    1988 June 22: The fifth launch from Kapustin Yar on a suborbital flight in the direction of Lake Balkhash of the K65M-RB5 (Kosmos-3) launcher with Bor-5 No. 505 ...
  31. [31]
    NASA Ends Project on Rocket Meant to Replace Space Shuttle
    Mar 2, 2001 · NASA today canceled the billion-dollar X-33 rocket project that the agency had once hoped would lead to a replacement for the space shuttle.Missing: reusable | Show results with:reusable
  32. [32]
    X-33/VentureStar - What really happened - NASASpaceFlight.com
    Jan 4, 2006 · By early 2001, the program was officially canceled – five years and $1.5 billion down the line. Official reasons for the cancellation was a ...
  33. [33]
    McDonnell Douglas DC-X - Wikipedia
    The DC-X, short for Delta Clipper or Delta Clipper Experimental, was an uncrewed prototype of a reusable single-stage-to-orbit launch vehicle
  34. [34]
  35. [35]
    Space shuttle cost gets a reality check - NBC News
    Feb 11, 2005 · The data show that over the entire lifetime of the the space shuttle program the cost has been $145 billion, and about $112 billion since the ...
  36. [36]
    High Costs for Shuttles Limit Their Future Use - The New York Times
    May 10, 1992 · Costs Divided by Flights. One way to calculate the price of a mission is to divide annual operating costs by the number of flights each year.
  37. [37]
    Space shuttle retirement leaves 'yawning gap' in human spaceflight
    Jul 7, 2011 · Nasa's fond farewell to the aged shuttle fleet draws a permanent line under 30 years of missions that defined modern space flight, ...
  38. [38]
    NASA faces awkward, unfortunate spaceflight gap - NBC News
    Apr 14, 2011 · The space agency has long been expecting a years-long gap between the retirement of the shuttles and the first operational flights of new ...Missing: crewed | Show results with:crewed
  39. [39]
    T-Minus One Last Time For America's Spaceship - NPR
    Jul 8, 2011 · NASA's remaining three shuttles are grounded, leaving U.S. astronauts dependent on Russian spacecraft for nearly 2 1/2 years. -- Mark Stencel.Missing: crewed | Show results with:crewed
  40. [40]
    SpaceX Makes History: Falcon 9 Launches, Lands Vertically
    the first time such a feat had been achieved.<|control11|><|separator|>
  41. [41]
    SpaceX completes 400th Falcon booster landing on a drone ship
    Aug 27, 2025 · The first successful recovery of a Falcon 9 actually occurred on land in December 2015. It wasn't until the launch of SpaceX's eighth Commercial ...Missing: milestones | Show results with:milestones
  42. [42]
    Updates - SpaceX
    Starship V3 vehicles come equipped with docking ports and can be configured to act as tanker vehicles with the addition of docking probes. Starship also has a ...
  43. [43]
    SpaceX launch marks redemption for Starship. But time may ... - CNN
    Oct 14, 2025 · SpaceX's Starship rocket launches from Starbase, Texas, for its 11th fully integrated test flight on October 13, 2025. · Mock satellites are ...
  44. [44]
    Blue Origin Completes Historic First Reusable Suborbital Flight
    Nov 24, 2015 · The New Shepard space vehicle is fully reusable and operated from Blue Origin's West Texas launch site. The vehicle is comprised of two elements ...
  45. [45]
    Rocket Lab's next launch will include booster recovery experiment
    Oct 21, 2021 · The Electron rocket has about 1% of the lift capability of a SpaceX Falcon 9 launcher, the only partially reusable rocket currently operational.Missing: 2020s | Show results with:2020s
  46. [46]
    Rocket Lab gearing up to refly Electron booster for 1st time | Space
    Apr 18, 2024 · Rocket Lab has put a recovered Electron first stage back into its production line, a big step toward the company's first-ever rocket ...<|control11|><|separator|>
  47. [47]
    Sierra Space's Dream Chaser debut mission delayed again, no ...
    Sep 26, 2025 · [ November 11, 2025 ] Rocket Lab delays debut of Neutron rocket to 2026 Neutron. Sierra Space's Dream Chaser debut mission delayed again, no ...
  48. [48]
    NASA modifies Dream Chaser ISS cargo contract as Sierra Space ...
    Sep 25, 2025 · NASA officials suggested in recent months that the flight would likely be delayed further into 2026. “We, as always, are continuing to evaluate ...
  49. [49]
    NASA's Commercial Crew Program Press Kit
    May 6, 2015 · In 2014, NASA awarded Commercial Crew Transportation Capability (CCtCap) contracts to Boeing and SpaceX to each safely and cost-effectively ...<|control11|><|separator|>
  50. [50]
    Europe won't have reusable rockets for another decade: report - Space
    May 4, 2023 · Israël stated that, in his opinion, Ariane 6 would fly for more than 10 years before Europe transitions to a reusable successor in the 2030s.
  51. [51]
    SpaceX flies 24 Starlink satellites on its 100th Falcon 9 rocket ...
    Aug 17, 2025 · “Falcon Launch #100 of 2025. For reference on the increase in launch rate from last year, we hit 100 on Oct. 20th in 2024,” said Kiko Dontchev, ...Missing: per | Show results with:per
  52. [52]
    Re-Entry Aircraft
    The aircraft is said to be hypersonic. Typical low earth orbit re-entry speeds are near 17,500 mph and the Mach number M is nearly twenty five, M < 25.Missing: km/ | Show results with:km/
  53. [53]
    [PDF] Effect of Plasma Sheaths on Earth Re-entry MHD Processes
    The physical model fully couples the drift-diffusion model for the sheaths to the multispecies Navier-Stokes equations for the plasma flow. The Hall and ion ...
  54. [54]
    [PDF] Modeling Heat Flux Effects on Spacecraft at Atmospheric Re-entry
    Dec 27, 2024 · This research investigates heat flux dynamics during atmospheric transition, utilizing the Fay-Riddell equation to model heat transfer through ...
  55. [55]
    Phenolic-Impregnated Carbon Ablator (PICA) Heat Shield ... - NASA
    Jul 2, 2015 · PICA heat shield technology, a light-weight material capable of withstanding high temperatures, is used by SpaceX on the Dragon capsules.
  56. [56]
    tps - NASA
    All orbiter tiles are machined from blocks of RSI so that the layers of silica material run in a direction generally parallel to the skin of the orbiter. This ...
  57. [57]
    [PDF] Thermal Protection Systems: State of the Industry
    Nov 15, 2023 · Types of TPS include reusable, structurally integrated, and ablative. Ablative TPS decomposes during heating. High-temperature insulation is ...Missing: Starship | Show results with:Starship<|separator|>
  58. [58]
    Core Area of Expertise: Entry Systems - NASA
    Mar 4, 2025 · Julian Allen's blunt body theory – which stands as a foundation of space capsule design to this day – Ames has developed the facilities and ...Entry Systems · Ames' Role And Facilities · Featured Examples
  59. [59]
    [PDF] Spacecraft Design Considerations for Piloted Reentry and Landing
    Jan 14, 2004 · Because of this design, the CRV reentry would have been more similar to the “flying” motion of the Space Shuttle than the ballistic entry of the ...
  60. [60]
    Orion Skip Maneuver | Lockheed Martin
    Dec 6, 2022 · When NASA's Orion returned to Earth on Dec. 11, it successfully performed the first skip-entry maneuver for a human spacecraft.
  61. [61]
    Thermophysics Facilities - FAQ - NASA
    Nov 29, 2023 · The Arc Jets are hyper-thermal test facilities that support the testing of thermal protection materials for any program, system or vehicle that's going at very ...Missing: 37B | Show results with:37B
  62. [62]
    [PDF] Documentation and Archiving of the Space Shuttle Wind Tunnel Test ...
    This resulted in a very cost effective method of collecting the wind tunnel test results, from many test facilities utilized, into one centralized location.Missing: 37B | Show results with:37B
  63. [63]
    X-37B Orbital Test Vehicle concludes 6th successful mission - AF.mil
    Nov 13, 2022 · The X-37B Orbital Test Vehicle-6, or OTV-6, the U.S. Space Force's unmanned, reusable spaceplane, successfully deorbited and landed at NASA's ...
  64. [64]
    [PDF] Falcon Payload User's Guide - SpaceX
    Falcon 9 and Falcon Heavy can launch multiple satellites on a single mission. As a liquid-propellant launch vehicle with restart capability, Falcon launch ...
  65. [65]
    Shuttle Landing Facility - KSC Partnerships - NASA
    Kennedy Space Center's historic Shuttle Landing Facility (SLF), the site of one of the longest runways in the world, is available for use by external customers.
  66. [66]
    NASA's SpaceX Crew Rescue and Recovery
    Apr 19, 2021 · Support teams retrieve the SpaceX Crew Dragon Endeavour spacecraft after it splashed down in the Gulf of Mexico on Aug. 2, 2020. NASA. Space ...
  67. [67]
    SpaceX attempts second Falcon fairing drop test with a helicopter ...
    Oct 18, 2018 · Steven has continued a likely campaign of controlled drop tests with a second fairing recovery attempt, using a helicopter, spotter plane, and ...
  68. [68]
    Rocket Lab launches successfully, fails mid-air recovery attempt
    Nov 4, 2022 · As Electron enters the capture zone, the helicopter crew shadows the booster from above, matching its speed and descent before moving in to ...
  69. [69]
    Arresting-Cable System for Robust Terminal Landing of Reusable ...
    Aug 6, 2025 · The system consists of four deployable onboard hooks above the rocket's center of mass, an on-ground apparatus containing four arresting cables ...
  70. [70]
    An Analysis of SpaceX's Falcon 9 Crash Landing | WIRED
    Apr 15, 2015 · They don't just make cool projects like a reusable rocket booster that lands itself, they keep trying to land it even though they have failed ...
  71. [71]
    SpaceX's Plan to Land a Reusable Rocket on a Drone Ship
    Jan 9, 2015 · SpaceX hopes for a landing accuracy within 10 meters on the drone ship. SpaceX pegged the first landing test's chances at “perhaps 50 percent at ...
  72. [72]
    [PDF] Guidance and Control for Launch and Vertical Descend of Reusable ...
    Multiple scenarios of vertical launch, landing and full flight guidance on Earth and Mars, along with Monte Carlo analysis, were carried out to demonstrate the ...
  73. [73]
    [PDF] Guide to Verifying Safety-Critical Structures for Reusable Launch ...
    Inspections and functionality assessments follow protoflight testing. When using the protoflight structural verifi- cation approach, applicants should use ...
  74. [74]
    Engine Inspection on Tap after SpaceX Scrubs Thanksgiving Launch
    SpaceX will take several days to examine the causes of a slower-than-expected increase in pressure in the Falcon 9 rocket's first stage ...
  75. [75]
    [PDF] '0/3^J ;^ p 8 5 -16926 - NASA Technical Reports Server
    While total turnaround time was reduced, the relative time spent in the Orbiter Processing Facil- ity (OPF) continue to be one half of the turnaround.
  76. [76]
    SpaceX achieves record-breaking 2024, looks ahead to 2025
    Jan 3, 2025 · While in 2023, the average turnaround time of a booster was between 40 to 45 days, in 2024, the company was able to reduce the time down to 25 ...Missing: ars | Show results with:ars
  77. [77]
    SpaceX is superb at reusing boosters, but how about building upper ...
    Jan 14, 2025 · Shortest turnaround between two Falcon 9 launches from different pads: 1 hour, 5 minutes (August 31, 2024) · Shortest time with three Falcon 9 ...
  78. [78]
    Elon Musk: There is an 80 percent chance Starship's engine bay ...
    May 27, 2025 · It's a pretty quick refurbishment, but it takes a few days, whereas Starship booster is designed for immediate re-flight. So it literally comes ...
  79. [79]
    [PDF] Suborbital Reusable Launch Vehicles and Emerging Markets
    New, reusable suborbital launch vehicle firms believe they can offer more frequent flight opportu- nities at similar or lower costs than NASA if science ...
  80. [80]
    New Shepard | Blue Origin
    The New Shepard system has been designed for operational reusability and minimal maintenance between flights to decrease the cost of access to space and reduce ...Fly to Space · Reserve a Seat · Payloads
  81. [81]
    Spacecraft Fleet - Virgin Galactic
    by a hybrid propulsion system. Piloted Spaceflight. Two expert pilots lead each and every spaceflight to. ensure a smooth and safe ride to space and back ...
  82. [82]
    Virgin Galactic Places Main Oxidizer Tank Into Next Spaceship
    The Virgin Galactic rocket motor is a hybrid system which uses a solid fuel along with a liquid oxidiser and holds the record of being the most powerful hybrid ...
  83. [83]
    SNC's Hybrid Rocket Engines Power SpaceShipTwo on its First ...
    Apr 29, 2013 · SNC manufactures two major subsystems on the SpaceShipTwo vehicle including the main oxidizer valve and the hybrid rocket motor, plus nitrous ...
  84. [84]
    Suborbital Research - NASA Science
    Dec 12, 2023 · Description, Fully reusable, high-fidelity space vehicle offers fast turnaround times from launch to payload recovery and the next flight.
  85. [85]
    Payloads | Blue Origin
    Our newest capability allows New Shepard to spin up to a stable rate of rotation, creating centripetal acceleration in the payload lockers. The debut flight ...Payloads For R&d · Payloads For Business · Standardized Stacks For Easy...
  86. [86]
    Blue Origin flies sixth crewed New Shepard flight of 2025
    Oct 8, 2025 · Blue Origin launched its sixth crewed New Shepard flight so far this year Oct. 8 as the company works to increase the vehicle's flight rate.
  87. [87]
    Blue Origin Completes 36th New Shepard Flight to Space
    Oct 8, 2025 · Blue Origin successfully completed the 36th flight for the New Shepard program. New Shepard has now flown 86 humans (80 individuals) into ...
  88. [88]
    Virgin Galactic Completes 12th Successful Spaceflight
    Building on VSS Unity's unrivaled record in commercial human spaceflight (32 total flights, including 12 to space), the company is now producing its fourth ...Missing: SpaceShipTwo | Show results with:SpaceShipTwo
  89. [89]
    Virgin Galactic to halt Unity suborbital flights by mid-2024
    Nov 8, 2023 · Virgin Galactic will reduce the frequency of flights of its current suborbital vehicle and stop them entirely by mid-2024.
  90. [90]
    [PDF] Intelligent, Self-Diagnostic Thermal Protection System for Future ...
    The thermal protection system (TPS) is essential to protect the aluminum Shuttle from temperatures near 1640 “C experienced during reentry into the earth's ...
  91. [91]
    What You Need to Know about NASA's SpaceX Crew-7 Mission
    Jul 25, 2023 · After several maneuvers to gradually raise its orbit, Dragon will be in position to rendezvous and dock with its new home in orbit. The ...
  92. [92]
    [PDF] REPORTER'S NOTEBOOK - Boeing
    Dec 22, 2019 · Is Starliner reusable? A. The crew modules are designed to fly up to 10 missions. Service modules are made for each mission.
  93. [93]
    Dream Chaser Tenacity Uncrewed Cargo Spaceplane - Sierra Space
    Dream Chaser and Shooting Star in Launch Configuration · 8000 lbs of cargo upmass · 15+ reusable missions.
  94. [94]
    NASA, SpaceX Launch First Flight Test of Space System Designed ...
    Mar 2, 2019 · The Crew Dragon will approach to dock using new sensor systems, new propulsion systems and the new international docking mechanism to attach ...<|separator|>
  95. [95]
    [PDF] Commercial Crew Program - NASA
    In 2014, NASA awarded Commercial Crew Transportation Capability (CCtCap) contracts to. Boeing and SpaceX to each safely and cost-effectively transport ...
  96. [96]
  97. [97]
    10.0 Integration, Launch, and Deployment - NASA
    Feb 3, 2025 · A wide variety of integration and deployment systems exist to provide access to space for small spacecraft.
  98. [98]
    [PDF] NASA's Lunar Exploration Program Overview
    NASA will work with Artemis providers to ensure spacecraft are built to international interoperability standards with as many reusable components as possible ...
  99. [99]
    [PDF] Best Practices for the Design, Development, and Operation of ...
    Apr 1, 2023 · the Starliner CST-100 Reusable Spacecraft Capsule being developed Boeing to support rendezvous and docking functions. ESA Automated Transfer ...
  100. [100]
    Statistics - SpaceXNow
    Falcon 9, 559/562 (99.47%) ; Block 5, 504/505 (99.80%) ; Falcon Heavy, 11/11 (100%) ; Starship, 5/11 (45.45%).
  101. [101]
  102. [102]
    SpaceX to debut its fifth and final Crew Dragon spacecraft on Axiom ...
    Jun 10, 2025 · [ November 7, 2025 ] SpaceX launches Sunday Starlink mission following Saturday scrub Falcon 9 ... Dragon for more than five crewed missions.
  103. [103]
    NASA's SpaceX Crew-11 Secured Inside Dragon Spacecraft, Ready ...
    Aug 1, 2025 · The crew has finished executing communication checks with the launch team, and their seats have been rotated into position for launch.
  104. [104]
    Virgin Galactic completes final spaceflight before two-year pause
    Jun 9, 2024 · Virgin Galactic on Saturday successfully completed its last spaceflight before heading into a two-year pause on commercial operations to upgrade its fleet.
  105. [105]
    Boeing-Built X-37B Spaceplane Launches, Beginning Eighth Mission
    Aug 22, 2025 · Since first flight in 2010, the orbital test vehicle has completed seven missions and accumulated more than 4,200 days in space, returning after ...Missing: total | Show results with:total
  106. [106]
    US Space Force launches eighth X-37B mission
    Aug 22, 2025 · X-37B Mission 8 launches from Kennedy Space Center pad 39A, Fla., Aug. 21, 2025. The X-37B is a dynamic and responsive spacecraft ...Missing: November | Show results with:November
  107. [107]
    X-37B launches USSF-36 mission aboard Falcon 9
    Aug 21, 2025 · The U.S. Department of Defense's reusable X-37B Orbital Test Vehicle (OTV) has embarked on its eighth overall flight into orbit.
  108. [108]
    SpaceX pitches NASA 'simplified' Starship moon landing plan amid ...
    Oct 30, 2025 · SpaceX has launched 11 Starship tests so far in its test-to-failure development campaign. Another key milestone SpaceX expects in 2026 is ...
  109. [109]
    SpaceX to work on 'simplified' Starship after NASA reopens lunar ...
    Nov 4, 2025 · SpaceX develops vehicle for Mars, moon landings. The SpaceX Starship spacecraft is hoisted Oct. 11, 2025 along the launch tower for. Starship, ...
  110. [110]
    New Glenn Mission NG-2 - Blue Origin
    NG-2 Update: We are scheduled to launch Thursday, November 13, with a launch window from 2:57 PM – 4:25 PM EST / 19:57 – 21:25 UTC. The live webcast starts ...
  111. [111]
  112. [112]
    Peter Beck discusses Neutron development as maiden flight nears
    Oct 3, 2025 · Rocket Lab officially opened LC-3 at Wallops in August, completing construction that began in late 2023. The facility includes a 700-ton steel ...<|separator|>
  113. [113]
    Inversion Space Unveils Arc Reentry Vehicle - Payload Space
    Oct 2, 2025 · Inversion Space unveiled its flagship reentry vehicle—called Arc—in preparation for the spacecraft's first orbital flight in 2026.
  114. [114]
    Dream Chaser® Advances Toward First Flight, Eyes Multi-Use ...
    Sep 25, 2025 · Sierra Space is prioritizing first-flight readiness with Dream Chaser, targeting a launch in late 2026 to align with expected launch vehicle ...Missing: November | Show results with:November
  115. [115]
    Firefly Awarded $177 Million NASA Contract for Mission to the ...
    Jul 29, 2025 · “Firefly is honored to support another NASA CLPS task order as a proven, reliable partner for robotic missions to the Moon,” said Jason Kim, CEO ...
  116. [116]
    Northrop invests $50 million into Firefly for launch vehicle ...
    May 29, 2025 · Northrop Grumman is investing $50 million into Firefly Aerospace to further development of a medium-lift launch vehicle with a new name.
  117. [117]
    CLPS Providers - NASA
    NASA is working with several American companies to deliver science and technology to the lunar surface through the CLPS initiative.Astrobotic · Draper · Firefly Aerospace · Intuitive Machines
  118. [118]
    NASA's final space shuttle mission comes to an end | July 21, 2011
    The estimated price tag for the entire space shuttle program, from development to retirement, was $209 billion.
  119. [119]
    Snowstorm: The Rise and Fall of the Soviet Buran Shuttle
    Nov 15, 2020 · It was officially terminated in 1993 as a result of the collapse of the Soviet Union two years earlier. Buran was the name of both the program ...
  120. [120]
    NASA grieves over canceled program - NBC News
    Feb 2, 2010 · President Obama's 2011 budget request for NASA cut the agency's Constellation program completely, effectively canceling a five-year, $9 billion effort.
  121. [121]
    Airbus unveils 'Adeline' re-usable rocket concept - BBC News
    Jun 5, 2015 · Airbus, which leads the production of Europe's Ariane rocket, has developed a concept that could make future vehicles partially re-usable.Missing: canceled | Show results with:canceled
  122. [122]
    Reaction Engines Goes Into Bankruptcy, Taking the Hypersonic ...
    Nov 12, 2024 · Reaction Engines Goes Into Bankruptcy, Taking the Hypersonic SABRE Engine With it. By mark-thompson - November 12, 2024 06:33 AM UTC | Space ...Missing: stalled | Show results with:stalled
  123. [123]
  124. [124]
    [PDF] NASA Lessons Learned on Reusable and Expendable Launch ...
    Jan 15, 2015 · • Focusing design on operability and (lower cost) reusability can lead to new drivers for research and technology. – Robust margins (mass ...
  125. [125]
    [PDF] Space Shuttle Era Facts - NASA
    cost approximately $1.7 billion to build. The life of the shuttle program has cost $113.7 billion. (Not adjusted for inflation). Shuttle History. Each space ...
  126. [126]
    Reusable Rockets vs. Disposable Rockets: Market Trends and Cost ...
    Oct 14, 2025 · 1. Reusability Impact: Reusable rockets can reduce launch costs by up to 70% compared to disposable rockets. A big reason why space travel has ...
  127. [127]
    The Space Report 2025 Q2 Highlights Record $613 Billion Global ...
    Jul 22, 2025 · Space Foundation released The Space Report 2025 Q2, revealing the global space economy reached an unprecedented $613 billion in 2024.
  128. [128]
    [PDF] KSC Economic Impact Study FY21 - NASA
    But just like initial changes in output and income, the number of spaceport jobs is ultimately amplified through supply- chain and income re-spending effects, ...
  129. [129]
    Environmental life cycle assessment of reusable launch vehicle fleets
    The results show that the LH2 fleet options have 2–8 times lower carbon footprint when compared to the LCH4 fleet as a result of lower propellant consumption ...Missing: steel | Show results with:steel
  130. [130]
    Why We Need to Reduce, Reuse and Recycle in Space
    Jan 21, 2025 · In addition to saving money, in-orbit servicing reduces the frequency of new satellite launches, which in turn minimizes the accumulation of ...
  131. [131]
    Toward net-zero in space exploration: A review of technological and ...
    Apr 1, 2025 · The emergence of reusable rocket technology has transformed space exploration by markedly decreasing launch expenses and enhancing flight ...<|control11|><|separator|>
  132. [132]
    SpaceX's 30th Falcon 9 Reuse: A Tipping Point for Space ... - AInvest
    Aug 30, 2025 · - Reusability slashes launch costs by 70-80%, enabling $2,720/kg orbital access and accelerating space commercialization. - Starlink's 8,200- ...
  133. [133]
    Space Tourism Market Size, Share & Growth Report, 2030
    Blue Origin is making significant strides to expand its market share in the burgeoning space tourism industry through a strategic and customer-centric approach.
  134. [134]
    Reusable Launch Vehicle Market Size, Trends Report, 2033
    Partial reusability, on the other hand, provides a more immediate return on investment (ROI) by allowing certain key components to be recovered and reused.
  135. [135]
    Reusable Launch Vehicles Market - Share, Size & Revenue 2030
    Jul 2, 2025 · The reusable launch vehicles market size is estimated at USD 6.89 billion in 2025 and is forecasted to hit USD 9.21 billion by 2030, expanding at a 6.1% CAGR.
  136. [136]
    Starship - SpaceX
    Starship is the world's most powerful launch vehicle ever developed, capable of carrying up to 150 metric tonnes fully reusable and 250 metric tonnes expendable ...
  137. [137]
    Orion Spacecraft - NASA
    It is currently the only spacecraft capable of crewed deep space flight and highspeed return to Earth from the vicinity of the Moon. NASA's Artemis program will ...
  138. [138]
    Starlink Satellite Constellation - eoPortal
    Starlink is a satellite constellation development project underway by SpaceX, to develop a low-cost, high-performance satellite bus and requisite customer ...<|separator|>
  139. [139]
    In Orbit Aerospace - Factories in Space
    Our uncrewed, reusable vehicles leverage proven technologies and are compatible with many launch vehicles to enable a high frequency of flights at a low cost.
  140. [140]
  141. [141]
    ESA and Avio sign contract for a reuseable upper stage ...
    Sep 29, 2025 · ESA and NASA are consolidating their cooperation on the ExoMars Rosalind Franklin mission with an agreement that ensures important US ...
  142. [142]
    SpaceX
    SpaceX's Starship spacecraft and Super Heavy rocket is a fully reusable transportation system designed to carry both crew and cargo to Earth orbit, the Moon, ...Falcon 9 · Careers · Starship · Mission: Mars
  143. [143]
    U.S. Space Policy: The Next Frontier | Manhattan Institute
    Apr 17, 2025 · Second is America's private space industry, which has made great leaps in capability and cost reduction but faces arcane regulatory hurdles that ...
  144. [144]
    Financing the space economy: Scaling up private investment to ...
    The global space economy continues to boom, with a current estimated value of US $596 billion. This is projected to grow to US $1.8 trillion by 2035 – an ...