Researchers examining Noachis Terra in Mars’ southern highlands found evidence of extensive river networks – some hundreds of ...

Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the ...

For decades, scientists have theorized about how Mars reached its current state. Many believe that the Red Planet's surface ...

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the ...

By studying seismic waves, researchers have found a layer deep beneath the surface of Mars that could contain enough liquid water to flood the planet with an ocean thousands of feet deep.

By studying seismic waves, researchers have found a layer deep beneath the surface of Mars that could contain enough liquid water to flood the planet with an ocean thousands of feet deep.

With a $621,000 award from NASA, University of Massachusetts Amherst microbiologist James Holden will dedicate the next three years to “predicting” the nature of life on Europa.

A new study posits that dark streaks originally believed to be signs of water on Mars' surface might not be that at all.

Satellite images suggest long, dark streaks on Mars may not actually be related to water on the Red Planet.

Scientists have found seismic clues that suggest liquid water may be hiding beneath Mars' surface. By listening to the echoes of "marsquakes" — seismic waves rippling through Mars' crust ...

Liquid water once shaped the Martian landscape dramatically, carving valleys, filling lakes, and forming vast oceans. Billions of years ago, during Mars' early days known as the Noachian and ...

Was Mars a friendly planet for water, even life, in its ancient past? Huge channel networks run across its surface. Rocks show signs of water immersion. Yet pictures sent back from NASA's ...