With the release, the American public could learn what, if anything, the government has documented about the unexplained ...

Popular culture imagines aliens as creatures made of flesh and bone — but some researchers argue that advanced civilizations ...

NASA’s Europa Clipper mission will perform 49 close flybys of Jupiter’s icy moon, where radiation levels reach 5,400 milliSieverts per day — lethal within hours. Beneath its frozen crust may lie a ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new ...

Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million ...

Sci-fi shows come and go, but certain series surprisingly hold up over time, like Doctor Who, The X-Files, and Star Trek: The ...

The Apollo missions changed how scientists understand the moon. Returning with Artemis could help solve some of the biggest ...

Scientists suspect that a rapidly spinning, highly magnetic neutron star, or "pulsar," dwells at the heart of the Milky Way.

Declassified documents released in 2013 during Obama’s presidency acknowledged the existence of Area 51, saying that the secret government space was used as an aerial testing ground for U.S.

President Donald Trump says he’s directing the Pentagon and other government agencies to identify and release files related ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...