Fred Hoyle
Sir Fred Hoyle FRS (24 June 1915 – 20 August 2001) was a British astronomer, cosmologist, and mathematician renowned for co-developing the steady-state theory of the universe in 1948 with Hermann Bondi and Thomas Gold, positing an eternal cosmos with continuous matter creation to maintain constant density amid expansion.[1][2] He also formulated the theory of stellar nucleosynthesis, explaining the origin of elements heavier than helium through fusion processes in stars, a framework detailed in the influential 1957 B²FH paper co-authored with Geoffrey and Margaret Burbidge and William Fowler.[3][4] Hoyle popularized the term "Big Bang" during a 1949 BBC radio broadcast, using it mockingly to critique the singular origin hypothesis he rejected in favor of steady-state cosmology, which he defended vigorously against mounting empirical evidence like the cosmic microwave background that later favored the rival model.[5][6] Despite the eventual dominance of Big Bang cosmology—partly amid institutional shifts in postwar astrophysics—Hoyle's nucleosynthesis work remains foundational to modern stellar evolution models.[7] In later years, Hoyle collaborated with Chandra Wickramasinghe on panspermia, arguing that life on Earth arose from extraterrestrial microbes carried by comets, challenging terrestrial abiogenesis and invoking improbable coincidences in physical laws that suggested deliberate fine-tuning by a "superintellect."[6][3] A prolific author of science fiction and popular works, Hoyle knighted in 1972 exemplified a contrarian approach prioritizing theoretical coherence and observational fit over consensus, influencing debates on cosmic origins and life's emergence.[5][8]