A look at new research showing how snowmelt, trees, and underground water shape the flow of mountain streams long after ...

Sixty-million-year-old rock samples from deep under the ocean have revealed how huge amounts of carbon dioxide are stored for ...

Skylights, openings in the surface of Mars that descend down into caves, have been found on Mars, along with signatures for ...

Mussels have mysteriously been missing from manmade marshes around Hampton Roads. Local marine scientists want to change that ...

A “very large roll” of a radar instrument offers new insight into a highly reflective area near the Martian south pole.