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

SPOILER ALERT: This story contains spoilers for "Disclosure Day," now playing in theaters. While Steven Spielberg’s latest sci-fi film is headlined by performances from Emily Blunt and Josh O’Connor - ...

A planet’s radio signal may begin as a sharp tone (left, white) but can be spread out by the star’s surroundings plasma winds into a wider, fainter signal (right, green). Credit: Vishal Gajjar A new ...

Americans "deserve the truth," a U.S. congressman has told a press conference as part of a wider transparency campaign.

Aliens, cryptids and unidentified flying objects such as Mothman and the Flatwoods Monster all have a supposed history of ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

Kansas City has long been a hotbed of activity, says Margie Kay, director of the Missouri chapter of the Mutual UFO Network ...

When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of ...

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.

The “Honeymooners” actor was obsessed with the supernatural—even his house looked like a spacecraft. On a tour of the Mothership, will the author of a new Gleason book come face to face with the ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...