NASA has taken a bold step in the search for alien life beyond Earth. The space agency announced the selection of seven advanced technology partners for its next major mission, the Habitable Worlds ...

Creating a believable alien world takes more than imagination. It requires biology, environmental logic, and evolutionary pressure. The Birrin ecosystem follows scientific rules every step of the way.

(Photo by ABC Photo Archives/Disney General Entertainment Content via Getty Images) Bzzzzzzrt! That was my phone late last night with a text from my sister. “Obama just said Aliens are Real! What do ...

While aliens in science fiction hop between planets on vast spaceships, scientists say real–life extraterrestrials might take a far less glamorous means of transport. When an asteroid slams into a ...

Former U.S. President Barack Obama said he did not see evidence that aliens "have made contact with us," after sending social media abuzz by saying aliens were real on a podcast over the ...

Scientists might have just found Earth's icy, distant cousin a few hundred light-years away. HD 137010 b is one of thousands of exoplanets, or planets that orbit other stars, and is potentially the ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist’s concept depicts a potential volcanic exomoon between the exoplanet WASP-49Ab, left, and its parent star.