The Black Cloud Society into the book. Hoyle was also responsible for the term "Big Bang", though Hoyle himself did not subscribe to the Big Bang theory in favour of his own Steady State Theory. In a plot twist that foreshadows Hoyle's stance on panspermia, the cloud expresses surprise that intelligent life is capable of forming on planets. The novel has a recurrent theme of the duplicity and shallowness of politicians compared with scientists. The Black Cloud The Black Cloud is a science fiction novel by British astrophysicist Fred Hoyle. Published in 1957, the book details the arrival of an enormous cloud of
Big Bang nucleosynthesis conditions. The denser the initial universe was, the more deuterium would be converted to helium-4 before time ran out, and the less deuterium would remain. There are no known post-Big Bang processes which can produce significant amounts of deuterium. Hence observations about deuterium abundance suggest that the universe is not infinitely old, which is in accordance with the Big Bang theory. During the 1970s, there were major efforts to find processes that could produce deuterium, but those revealed ways of producing isotopes other than deuterium. The problem was that while the concentration of deuterium in the universe is consistent with