Near the center of a Martian crater about the size of Connecticut, hundreds of exposed rock layers form a mound as tall as the Rockies and reveal a record of major environmental changes on Mars ...

Researchers find that Earth’s orbital rhythms influenced sediment and organic preservation in Jurassic shale deposits.

NASA’s Curiosity Mars rover is examining a valley where at least two types of bedrock meet, for clues about changes in ancient environmental conditions recorded by the rock. In addition to two rock ...

Far out in the North Atlantic, Bermuda sits atop a broad rise in the seafloor that has troubled Earth scientists for decades. Many volcanic ocean islands rest on similar swells, which are usually ...