The group leading the charge in the search for extraterrestrial life has given the all clear: An interstellar comet looks to ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet ...

Sci-fi is a genre filled with hidden gems, but a Tim Burton classic that failed upon release is finally getting the attention ...

The rock, Clinton said, “speaks to us across … billions of years and millions of miles. It speaks of the possibility of life.

Overlooking signs of alien life may be humanity’s biggest mistake, according to scientists warning NASA could miss hidden ...

Astrobiologists warn that NASA's current instruments may miss subtle signs of alien life, risking 'false negatives' in the ...

Using data from NASA’s MAVEN (Mars Atmosphere and Volatile Evolution) mission, scientists identified the Zwan-Wolf effect in Mars’ atmosphere. The phenomenon is known to occur ...

Don't miss our daily roundup. Stay informed with a handpicked selection of the day's top AOL stories, delivered to your inbox. Thanks for signing up. Thank you for signing up. You will receive a ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's Mars Curiosity rover has been exploring a curious geological formation made up of ridges that look like spiderwebs from ...

It sounded like the former president was having an X-Files moment. Asked on a podcast whether aliens were real, Barack Obama replied with Fox Mulder certainty. "They're real, but I haven't seen them," ...

Where are all the aliens? No, I don’t mean microbes on Mars or creatures swimming beneath the ice crusts of Europa or Enceladus, but honest-to-God intelligent aliens, capable of space travel? The ...