Asimov, Isaac

Describes the physical characteristics, rings, moons, and movement of the planet Saturn.

Examines the movement, interior geology, atmosphere, and other characteristics of the planet on which we live.

Provides tips on how to spot some of the wonders of our solar system and galaxy and how to choose a telescope. Also discusses astronomical mysteries and amazing facts.

Introduces the largest planet, one composed largely of gases and having numerous satellites.

Briefly discusses facts and fantasies about UFOs.

Describes the life of Columbus as a young man, and as an explorer who marshalled the best technology of his time to explore new lands.

Discusses why certain animals have become endangered and what can be done to keep them from becoming extinct.

Describes the characteristics and value of tropical rain forests, why they are disappearing, and how to save them.

Describes how the seasons affect people and other living things.

Explains why stars in the night sky appear to twinkle.