Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

The strangely shaped object - snapped by NASA's Opportunity rover - has resurfaced and reignited wild theories about little green men on the Red Planet ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

The planet Mars is home to many wonders waiting to be discovered by humans in the coming years. Experts recently discovered ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

An interstellar comet that blazed past the sun and swung by Earth last year could be nearly three times older than our solar ...

Astrophysicist and science communicator Neil DeGrasse Tyson, 67, dropped a bombshell and told the government to “show the alien” while speaking on “The Fox News Rundown." ...

From the Navy’s infamous Tic-Tac encounter to thousands of recent reports, believers say some of the strangest UFOs may be hiding underwater.

Neil deGrasse Tyson calls on the government to just show the alien, saying Americans are ready for disclosure after years of hearings and UAP files.

The Pentagon's latest release of declassified Unidentified Anomalous Phenomena files places a spotlight on reports and recordings from the Northeastern United States, including two videos documenting ...

A new federal release is giving the public another look at unexplained sightings.The Department of War released its third batch of declassified UFO and Unidentified Anomalous Phenomena records on ...