A nutrition scientist applies metabolism, biology and food science to one of science fiction's oldest questions.

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a government website depicts non-citizens as extraterrestrials.

Like many fans we are simply having fun using science to analyze the creatures. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This article was ...

As UAP files are declassified and Disclosure Day hits cinemas, physicists argue that any aliens capable of reaching Earth ...

For centuries, humanity has looked to the stars and wondered, if intelligent life exists elsewhere, why haven’t they reached out? Now, a NASA astrophysicist believes the answer might be far simpler ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration by Alberto Mier/CNN When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO ...