The essential ingredient for life, water, appeared on both planets around 4.4 billion years ago, new research indicates.

A pair of planetary scientists simulated how our solar system might have evolved if it had a super-Earth orbiting where the ...

Computer simulations suggest that Mars' puzzling moons, Phobos and Deimos, may have been formed from debris created when a ...

Was Mars just like Earth billions of years ago? A new study is making a very compelling case that our Martian neighbor may ...

Water is ubiquitous on Earth—about 70% of Earth's surface is covered by the stuff. Water is in the air, on the surface and ...

In “A City on Mars,” Kelly and Zach Weinersmith investigate what life would be like for humans on the red planet, arguing ...

Scientists have found what seems to be the oldest direct evidence of hot water flowing on Mars during its ancient past. The ...

To uncover the truth about the origins of these moons, scientists are looking forward to the Mars Moons eXploration (MMX) ...