How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Astrobiologists say we could find evidence of microbial life within the next 10–20 years. What does that mean? Where are we ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

Europa hides one of the most intriguing environments in the solar system beneath its frozen surface. This story traces how ...

With Area 51 ruled out by President Obama, where might aliens really be hiding? Scientists have now revealed the best candidates.

NASA’s Europa Clipper mission will perform 49 close flybys of Jupiter’s icy moon, where radiation levels reach 5,400 milliSieverts per day — lethal within hours. Beneath its frozen crust may lie a ...

Former U.S. President Barack Obama said he did not see evidence that aliens "have made contact with us," after sending social ...

Former President Barack Obama said he did not see evidence that aliens “have made contact with us,” after sending social ...

Free-floating planets, or as they are more commonly known, rogue planets, wander interstellar space completely alone. Saying there might be a lot of them is a bit of an understatement. Recent ...

Former U.S. President Barack Obama has clarified comments he made about alien life on a podcast over the weekend ...

Former U.S. president Barack Obama took to Instagram on Sunday to clarify comments he'd made on a podcast about aliens being ...

Defense Secretary Pete Hegseth's face lit up while answering questions about his assignment to identify and release files on UFOs. Here's what he said. (AP Photo) ...