In 1964, astrophysicists on Earth became aware of a cloud of gas and dust, initially thought to be a Bok globule, that is heading for the Solar System. The cloud, if interposed between the Sun and the Earth, could … See more

The Spectator described it as "delightful and fascinating", despite the "slightly chilling" implication of the scientists' attitude to the victims. Galaxy reviewer Floyd C. Gale stated that he had not expected "such … See more

Although the presence of a sentient cloud of gas may seem unlikely, the story is grounded in hard science. The detection of the cloud is described using physics equations, all of which are included in the book. Hoyle brought his experience and knowledge as the … See more

The book was adapted as a radio drama by the BBC, broadcast on Saturday 14th December 1957, at 21:15 on the BBC Home Service. The drama was written by Stephen Grenfell See more