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

WASHINGTON — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national ...

The White House has appointed Harvard astronomer Avi Loeb to lead a new scientific advisory team investigating unidentified ...

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

The NASA Opportunity Rover has once again sparked fascination after one of its older images resurfaced online, reigniting speculation about unusual objects scattered across the surface of Mars. While ...

Astronomers may have witnessed one of the rarest and most dramatic cosmic events ever seen: a long-sought intermediate-mass ...

James Webb uncovered exotic salt clouds surrounding the famous "Pink Planet," solving a long-standing mystery about one of ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...