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

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

A controversial Harvard University cosmologist who has suggested alien lifeforms could be sailing into the solar system disguised as meteors is leading the Trump administration’ ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

A Harvard University professor known for his polarizing theories about extraterrestrial life has been tapped by the White ...

Loeb's team will report to a new White House panel focused on UFOs, now often referred to as unidentified anomalous phenomena ...

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

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

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...