Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, ...

Rocks loafing about on the surface of Mars have been harboring secrets about the red planet's mysterious past.

Thermal emission measurements from the exoplanet Trappist-1 b suggest two plausible yet contradictory scenarios ...

Republicans are pushing to ease the state's mining regulations to allow small-scale enthusiasts to take advantage of sites ...

Volcanoes offer breath-taking views and thrilling adventures. Explore Iceland’s Thrihnukagigur magma chamber, Costa Rica’s ...

Where did the red Planet's water go ... determined that a mid-crust made up of fractured, water-saturated igneous rock best explains data collected by NASA’s now-retired Interior Exploration ...

Researchers have found new evidence for a massive subsurface ocean on Mars, highlighting the possibility of microbial life ...

More than 3 billion years ago, Mars intermittently had liquid water on its surface. After the planet lost much of its ...

Researchers examining seismic data recorded on Mars say the have found evidence supporting the presence of liquid water deep ...

Stromatolites: You Can't Spell Mold Without Old One of the big problems with Kelvin's estimates for the age of the Earth was ...