Discover how rocks, minerals & the rock cycle change your world. Join the Science Trek team to explore rocks and minerals! Discover how the Earth formed, the three types of rocks, the rock cycle, and ...

Test your rock & mineral smarts—are you a Rock Star? Think you know rocks and minerals? Take the Science Trek quiz! Test your smarts on gold, salt, Earth’s oldest rocks, gemstones on Mars, and the ...

The world's oldest rocks are spread across the globe and paint a picture of Earth's turbulent early history. Here are some of the most notable and important formations scientists have discovered. When ...

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 ...

A surprising discovery on the Cumbrian coast of England has uncovered a new type of rock, formed from industrial waste, that challenges our understanding of the Earth’s geological processes. As ...