What happens when you stick six wannabe astronauts in crammed quarters in the middle of nowhere for months? A NASA-funded study seeks to find out.
For three (Martian) years, NASA has been collecting images of heart-shaped features on the Red Planet. Here they are, just in time for Valentine's Day.
UFO enthusiasts are excited about a strange blip of light in a photo from Mars, but the real explanation is likely much less exotic than alien life.
The Mars One project plans to send a crew of colonists to the Red Planet in about 10 years, but Muslims may have to defy a religious edict to make the trip.
Where did the infamous rock that seemed to appear out of nowhere on Mars come from? The explanation, it turns out, is more simple than sci-fi.
They're called "recurring slope lineae." They've been showing up in photos of Mars, and they could be explained by the presence of seasonal water flows on the red planet.
The violent impact of a space rock on the Martian surface creates a compellingly beautiful image, but good thing no one's home up there.
Get a rare perspective on the Curiosity rover's travels across a distant planet with a fascinating image snapped by NASA's Mars orbiter.
A mystery rock wrapped in an enigma wrapped in a doughnut appeared on Mars recently, and NASA's trying to figure out how it got there.
The country's first-ever mission to Mars launches into space carrying five scientific payloads with which it will observe the planet's surface, atmosphere, and exosphere.