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 image taken by Curiosity last month has sparked claims of a long-lost civilization on the Red Planet after some spotted a ...

Neil deGrasse Tyson challenges recent UAP disclosures, urging officials to provide concrete evidence of extraterrestrial life ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

Copyright 2026 The Associated Press. All Rights Reserved. Copyright 2026 The Associated Press. All Rights Reserved. This image provided by NASA shows the interstellar ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar ...

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.

By coordinating simultaneous deep-space observations, an international team of astrophysicists has successfully captured one ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

NBC News' Gadi Schwartz talks to NASA program manager Carlos García-Galán about the moon base initiative and the agency's ...

The Pentagon on Friday released a new group of documents and videos related to UFOs, or UAPs, with 72 more documents, images ...