Harvard scientists studying the mystery of water and life on ancient Mars believe they may have finally found a solution.

Skull fragments, teeth and jaws found at different sites in China have led some researchers to believe they have found the remains of a previously unknown ancient ... lowlands of Mars, and they ...

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 ...