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

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

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

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

The question of whether humanity is alone in the universe has fascinated scientists for generations, but few have pursued an ...

Lawmakers and Trump UFO advisors are naming the private corporations who allegedly operate alien craft-retrieval programs — ...

By Joey Roulette and Steve Gorman WASHINGTON, July 3 (Reuters) - NASA and Arizona-based startup Katalyst launched a robotic ...

A private rocket mission aims to boost NASA’s Swift telescope before its orbit decays, extending its hunt for gamma-ray ...

Without a rescue mission, NASA’s Swift Observatory, which studies some of the most powerful explosions in the universe, will ...

A U.S. Space Force mission pitting two satellites against each other has completed the organization's first tactical ...

NASA has launched the LINK spacecraft on a mission to rendezvous with the aging Swift observatory and boost it into a higher ...