If you’re a scientist studying the surface of Mars, few discoveries could be more exciting than seeing recent gullies apparently formed by running water. And that’s what scientists believed they saw ...

Mars may have hosted life billions of years ago, a possibility that has long intrigued scientists. Now, new evidence suggests the planet was habitable for even longer than previously thought, due to ...

The observation of small gullies on Mars was one of the more unexpected discoveries of the Mars Observer Camera (MOC) aboard the Mars Global Surveyor spacecraft. The characteristics of these gullies ...

During a recent solar storm, NASA's Curiosity rover detected its highest-ever level of radiation reaching the surface of Mars. Reading time 3 minutes A recent outburst from the Sun sent a strong blast ...

Add Yahoo as a preferred source to see more of our stories on Google. Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed on ...

Mars isn’t as arid as it may seem. Billions of years ago, the surface of the Red Planet rippled with oceans and rivers of liquid water, but now it seems that all of that fluid has disappeared, leaving ...

Days after light shows filled Earth’s skies with wonder, the red planet was hit by another powerful outburst of the sun. By Robin George Andrews The sun fired off a volley of radiation-riddled ...

Evidence suggests Mars could very well have been teeming with life billions of years ago. Now cold, dry, and stripped of what was once a potentially protective magnetic field, the red planet is a kind ...