This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

The Earth is four and a half billion years old, so why they started appearing then is unknown, as is the mechanism to make ...

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

Once it was clear that the finding was most likely real, the team took a closer look at the chemistry of the material nearest ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

The Trump administration has tapped a Harvard professor with controversial theories about aliens to lead a team of scientists ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

Speaking for the first time since a chilling experience four decades ago, Paul Jones and his mum Daphne reveal how their trip ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

One of the UFO world's most outspoken skeptics has apologized to one of its most famous whistleblowers. Michael Shermer's ...