Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

Paulson School of Engineering and Applied Sciences (SEAS) have determined the chemical mechanisms by which ancient Mars was able to sustain enough warmth in its early days to host water ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

Did Mars have lakes and rivers during a single period or over separate periods? This is what a recent study published in ...

because Mars is further from the sun, and also, the sun was fainter early on." New research suggests that temperatures on ancient Mars may have fluctuated between hot and cold periods through a ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

Paulson School of Engineering and Applied Sciences (SEAS) have determined the chemical mechanisms by which ancient Mars was able to sustain enough warmth in its early days to host water ...