Initially, the surface of our planet was a fiery, molten stew. Within a few million years, the crust cooled and water vapor rained down to form the oceans, where life may have made it's first appearance.

Our Milky Way Galaxy is unusual in that it is one of the most massive galaxies in the nearby universe. Our Solar System also seems to have qualities that make it rather unique. These qualities make the Sun one of the few stars in the

Billions of years ago, amino acids somehow linked together to form chainlike molecules. Now scientists have discovered what may be a key step in this process - a step that has baffled researchers for more than a half a century.

Billions of years ago, amino acids somehow linked together to form chainlike molecules. Now scientists have discovered what may be a key step in this process - a step that has baffled researchers for more than a half a century.

How did the largest planet in our solar system form? New theories on how planets like Jupiter form put traditional theories to the test.

Thanks to a new supercomputer, scientists may be a step closer to understanding one of nature's more difficult puzzles.