The rocks at Papago Park look like you've landed on the moon right in the middle of the Valley. At Valley 101, we found out ...

A remote outcrop in Canada harbors rocks that are at least 4.16 billion years old, researchers report June 26 in Science. If true, these rocks would be the oldest known on Earth and the first to date ...

Bright pink granite boulders, out of place on Antarctica's volcanic Hudson Mountains, have revealed a colossal granite ...

The Rock Cycle is Earth's great recycling process where igneous, metamorphic, and sedimentary rocks can all be derived from and form one another. Analogous to recycling a Coke can, where an old can ...