Evidence of ancient life on Mars, if any such evidence exists, might be detectable at shallower depths below the planet's surface than has been thought, a new study says – which would improve the ...

NASA's Curiosity rover uncovered critical new samples, including a series of compounds planetary scientists consider building blocks for the origin of life on Earth ...

The water needed for sustaining life could have lasted much longer on Mars than thought ...

NASA's newest Mars rover is entering the final leg of its space cruise, with just over three months remaining until it touches down on the Red Planet. The huge Curiosity rover launched in November ...

"This experiment's never been run before on another world," said Amy Williams, an astrobiologist working on the Curiosity mission.