The novel's plot revolves around the consequences of the Earth's sun being blocked out by an "intelligent" black cloud.
The Black Cloud

Fred Hoyle: The Black Cloud (1968, Signet)
Published Feb. 1, 1968 by Signet.

Fred Hoyle: The Black Cloud (1968, Signet)
The novel's plot revolves around the consequences of the Earth's sun being blocked out by an "intelligent" black cloud.
Published Feb. 1, 1968 by Signet.