The Mars Moons eXploration spacecraft will fire its thrusters to maneuver into orbit around Mars (depicted in this digital ...

Mars’ two tiny moons, Phobos and Deimos, may look like simple chunks of rock—but they hide a dramatic future. Phobos, in particular, is slowly spiraling toward Mars and could eventually break apart or ...

Add Yahoo as a preferred source to see more of our stories on Google. For decades, science fiction writers from Andy Weir to Ray Bradbury have vividly imagined what it would be like if humans were to ...

An image circulating on Facebook showing Mars the same size as the moon is a hoax. The hoax states that on Tuesday at 12:30 a.m., Mars will be so close to Earth that it will appear about the same size ...