Add Yahoo as a preferred source to see more of our stories on Google. A small mare ridge in Northeast Mare Imbrium taken by the Lunar Reconnaissance Orbiter Camera. (CREDIT: NASA / GSFC / Arizona ...

A new study has found that most rare earth deposits – sources of metals essential for electronics and clean energy ...

The dance of the continents has been reshaping Earth for billions of years, creating the landscapes we walk on today. Scientists are unlocking secrets about how plate tectonics forged our modern world ...

Low, winding ridges run across the Moon’s dark plains like faint seams in cooled wax. They are easy to miss in a wide photo. Up close, they look like the surface has been gently pushed from below. A ...