NASA's next Mars probe should get off the ground on time, no matter how long the government shutdown lasts.
The surface of ancient Mars may have been rocked repeatedly by giant supervolcanoes, which unleashed colossal and explosive eruptions that forever changed the face of the Red Planet, scientists say.
Future Mars explorers may be able to get all the water they need out of the red dirt beneath their boots, a new study suggests.
A group that's looking for the first Red Planet colonists received applications from more than 200,000 prospective astronauts vying for a spot on a one-way trip to Mars.
Earthlings may be treated to a dazzling celestial display this fall as Comet ISON makes a suicidal plunge toward the sun.
NASA's Mars rover Curiosity has captured the sharpest-ever images of a solar eclipse as seen from the Red Planet.