The largest piece of Mars on Earth became the most valuable meteorite ever sold at auction at Sotheby’s annual ”Geek Week,” ...

Due to extreme temperatures and the dryness of Mars, it's thought to be impossible for liquid water to form on the planet's surface, a critical precondition for habitability. The only hope of finding ...

Mars and Earth share similar origins: rocky planets with water and carbon, located in a potentially habitable zone. Yet one ...