When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

A NASA whistleblower claimed that the space agency knowingly covered up proof of alien life captured in everyday photos.

Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

Farmlands in Turkey are being pockmarked by hundreds of sinkholes, making them look like they were "attacked by a cosmic hole ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

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

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow the search for potentially habitable planets beyond Earth.

A nun discusses the debate on UFOs, suggesting they may be linked to spiritual forces rather than extraterrestrial beings, ...

LOS ANGELES — In “Disclosure Day,” in theaters now, Steven Spielberg is once again inviting audiences to ponder the existence of extraterrestrial life — and the implications it would have for religion ...

Disclosure Day' anchor Courtney Grace discussed filming the climactic broadcast in the film and quitting her job to pursue acting.