Exploring Space Series

Extraterrestrials

Published 1 January 2003

Published March 1999

Published 1 January 2003

Briefly describes the formation and composition of black holes and the forces connected with them.

Published 1 May 1999

Briefly describes the sun, moon, and planets, as well as the force of gravity that connects them.

Published March 1999

Briefly discusses various spacecraft, including rockets, satellites, and space shuttles, and the jobs they perform.

Published 1 January 2003

Briefly discusses the composition and position of comets, asteroids, and meteors.