Describes the characteristics of the planet Jupiter and its moons, as revealed by photographs sent back by unmanned spaceships.

Explores such aircraft tragedies as the Hindenberg, TWA flight 800, and United flight 232, and looks at how we can improve airline safety.

Describes the location and content of the asteroid belt, the formation and composition of asteroids, and the history of collisions between asteroids and the earth.

Describes the reasons for and instances of cannibalistic behavior in a variety of animals, including guppies, black widow spiders, sharks, gerbils, and brown bears.

Describes the physical characteristics, behavior, and habitats of some species of wild dogs: coyotes, foxes, and wolves.

Examines the physical characteristics, behavior, and habitats of three of the world's largest freshwater mammals: the hippopotamus, manatee, and river dolphin, and discusses some of the factors that threaten their survival.

Reviews the history of Earth's observation of the red planet since ancient times, explores the results of modern scientific studies carried out by telescope, satellite, and landing probe, and speculates on a future human landing.