Describes how magnets work and includes instructions for making a magnet and a compass.

Explains basic facts about the Big Dipper, including which stars make up the constellation, how its position changes in the sky, and how it points to the North Star.

Discusses some of the ideas and misconceptions about life in outer space and speculates on the existence of such life in light of recent space explorations.

Explains in simple text and illustrations what is known about the force of gravity.

Examines space flight to Mars.

Discusses the sun and the solar system, comparing how they were perceived in earlier times with what is known about them now.

Describes the sightings of Halley's comet throughout history and how its movements were definitively charted by the astronomer whose name it bears. Also discusses the composition of comets and their relationship to the earth, other famous comets, and the return of Halley's comet in 1986.

Simple text with illustrations explains rockets and satellites and describes their capabilities and functions.

Describes snow's physical qualities and how quantities of it can be fun as well as dangerous.

Explains the construction and purpose of the international Space Station and the life of the astronauts on board.