Spread the loveImagine, for a moment, holding definitive proof that life once existed beyond Earth. Not a blurry photograph, ...

A rocky planet orbiting in the habitable zone of a sun-like star may look like a perfect place for life to thrive — but not if it's too small to hold onto its atmosphere. So, we may wonder: How much ...

A thin atmosphere and other factors have left Mars' soil in rough shape, but the quest continues for signs of life, even if it's extinct. NASA/JPL-Caltech/MSSS What if we aren’t alone in the universe?

The team operating a remote chemistry lab onboard NASA’s Curiosity rover won a Gizmodo Science Fair award for discovering ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

A NASA image from Mars has reignited an old question online: are some of the strange patterns on the Red Planet really signs of life or movement there NASA/nasa.gov A NASA image from Mars has ...

Scientists scour hydrothermal vents and replicate Mars’ atmosphere to understand how life may exist on other worlds.

This summer, exoplanet science — the study of planets orbiting stars beyond our sun — took a big step forwards. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet ...

An image of Mars taken by NASA has sparked theories that the agency captured ruins of a lost civilization on the Red Planet.

Add Yahoo as a preferred source to see more of our stories on Google. A rocky planet orbiting in the habitable zone of a sun-like star may look like a perfect place for life to thrive — but not if ...