That means if aliens were to exist, and they were located some 66 million light-years from Earth, they’d theoretically still ...

The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

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

Emma Stone’s hard-faced corporate CEO has a lot of explaining to do when she is kidnapped by Jesse Plemons’s conspiracy kook. But in this film, asking whether someone is an alien seems an ordinary inq ...

A Catholic exorcist priest claims aliens are actually demons, arguing UFO abductions mirror diabolical attacks described in ...

Anyone familiar with the search for alien life will have heard of the "Goldilocks Zone" around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool ...

Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien bodies.

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.