"Our work is a new piece of evidence that suggests that Mars was once a much more complex and active planet than it is now." ...

Mars and Earth share similar origins: rocky planets with water and carbon, located in a potentially habitable zone. Yet one became a frozen desert while the other maintained life-friendly ...

Mars, the Red Planet, may have been much wetter in the distant past than scientists ever imagined. A groundbreaking discovery ...

Sotheby's is putting some rare items up for auction, including what it calls the largest piece of Mars ever found on Earth.

New images reveal that the strange Martian stripes on the slopes are formed by avalanches of dry dust, not liquid water.

NASA has selected three instruments to travel to the moon, with two planned for integration onto an LTV (Lunar Terrain ...