earth

Presents an introduction to earth sciences, describing the Earth's composition, geography, weather and climates, and more. Includes information on why and how to protect the Earth, and activities.

Mine owner David Innes and inventor Abner Perry set out to test Perry's mechanical prospector and end up in the land of Pellucidar, five hundred miles below the Earth's surface, where they work to unite the warring humans of the subterranean world, and to defeat the reptilian Mahars.

Discusses the theories that led to the discovery that the earth was round.

An introduction to the planets Earth and Mars, including their size, features, and orbits, and discusses explorations of Mars with various probes.

Presents the history of the earth. Includes a multimedia disk.

Xela, Arms Akimbo, Rubidoux, and Gogol discover a wormhole that leads to Earth so now the must find th Goners.

The Remnants, who left Earth in a spaceship shortly before it was hit by an asteroid, return centuries later and attempt to make a new life on the barren, hostile planet.

An illustrated overview of the planet Earth that discusses its composition, moon, core, atmosphere, and other related topics.

Presents an exploration of Earth's history based on the Hall of Planet Earth exhibit at New York City's American Museum of Natural History, discussing the origins of the planet, and examining how it works on the surface, beneath the crust, and under the sea.