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

[Related: Meteorite found in a drawer in 1929 contains ancient evidence of liquid water on Mars.] On Earth, the only zircons ...

However, for years, scientists have argued that the Viking's experimental techniques might’ve killed hygroscopic microbes ...

The Red Planet and the moon visit the Cancer constellation, the Crab. The moon and Mars will share a close approach in the ...

Something’s not quite right about the moons of Mars. They are too small — Phobos is 17 miles across, and Deimos is a mere ...

An image released from the European Space Agency (ESA) shows a rare perspective of Earth 180 million miles away on Mars.

Mars was a frigid, dry, dead world, just like it is now. Something slammed into the unfortunate planet, sending debris into ...

The discovery of a potential ancient ocean on Mars has profound implications for the ever-evolving search for ...

Finding evidence for the first life ever to emerge on planet earth is a long, tough slog. But oddly enough, real answers may ultimately come from Mars.