WHAT'S INSIDE: EARTH SCIENCE

Earth Science covers all facets of how the earth works, from from volcanoes to the world's oceans.
  • Geology
  • Geophysics
  • Oceanography
FEATURED: EARTH SCIENCE

Agate, a semiprecious variety of quartz valued both for its beauty and for its hardness.

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The Ultimate Fossil Quiz

When you think about fossils, you probably picture the big-money stuff: T-Rex skeletons, perfectly preserved mammoths and the like. Compared to them, the vast majority of fossils are relatively tiny and seemingly insignificant.

How the Rosetta Stone Works

Hieroglyphics used to be a language that no one -- Egyptian or otherwise -- could decipher. With the help of the Rosetta Stone, that all changed.

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