Sagan, Carl, 1934-1996. https://id.oclc.org/worldcat/entity/E39PBJc84QrBqcbrW4cfFx4rMP Comet / Carl Sagan, Ann Druyan.

Sagan, Carl, 1934-1996. https://id.oclc.org/worldcat/entity/E39PBJc84QrBqcbrW4cfFx4rMP

Comet / Carl Sagan, Ann Druyan.

Explores the fascinating realm of comets answering questions raised by their appearance and delving into the superstitions surrounding them.

Comets.

Halley's comet.

Druyan, Ann, 1949- https://id.oclc.org/worldcat/entity/E39PBJpYDm3XJGGghrDr8wpQMP