Scientists have thought for a long time that Mars used to have water on it like lakes and rivers. But new research shows that ...

There is a lot of evidence from orbiting satellites and surface rovers indicating that liquid water was present long ago on ...

A new image shows a striking contrast between Mars' desert-like terrain against dark deposits of volcanic ash.

Reading the "Mars Trilogy" by Kim Stanley Robinson brings the benefits and pitfalls of efforts to terraform the red planet ...

Mars was long considered an inhospitable planet characterized by extremely cold temperatures and constant bombardment by ...

Mars is called the Red Planet due to iron oxide covering its surface, giving it a rusty red appearance. This article explains ...

Whenever humans arrive on Mars, they're going to find it a difficult place to exist. Mars is cold, with an average surface ...

The reason why Mars is called the Red Planet is because of its reddish appearance when seen from space and Earth. Mars is red ...

Scientists say caves on Mars and icy moons may host microbial life and serve as future habitats for astronauts to be sent to ...

For several days this month, Saturn, Mars, and Mercury appear just degrees apart before sunrise—close enough to watch their ...