The ancient Greeks called it Gaia; the Romans Terra. We know it simply as Earth, the planet we call home. And what a planet it is. Formed around 4.6 billion yea

The internationally successful Ultimate Book series expands its scope to embrace—very appropriately—the whole world! The Ultimate Book of Planet Earth offer

Plate tectonics, oceanography, climatic change, the composition of the other planets, the workings of the sun, the origin of natural resources, and the origin a

The #1 international bestseller: An astronaut's tour of our planet from the heavens, featuring 150 mesmerizing photographs (with commentary) from the Internatio

Move to another planet? Sounds interesting! In our imaginary spaceship, let's check out the planets in our solar system. Mercury is closest, but it has no air,