Of all the various subgenres attached to the sci-fi domain, alien invasion flicks come off as timeless favorites. Here are ...

An alien comet is slipping away forever. For a few hours only, a livestream will show its final cosmic goodbye.

The best new Prime Videos to watch this weekend include the sci-fi sequel 'Alien: Romulus' and a charming Jennifer Aniston ...

A study using the Very Large Array radio telescope may have discovered a magnetic field on exoplanet YZ Ceti b. Magnetic ...

From the earliest days of human spaceflight, astronauts have described moments when something outside the window did not ...

NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts ...

It was never reported whether any UFOs actually checked it out over the decades it existed, but Pendarvis was quoted as ...

This charismatic ball of geology is aptly known as Giant Rock. Covering square meters (5,800 square feet) of ground and ...

American space agency is on the search for the perfect food system for Mars missions, launches the Deep Space Food Challenge: ...

MAVEN has remained silent since Dec. 6 despite repeated attempts to contact it, according to NASA. As part of the recovery ...

The CIA's Glomar response to a records request about the interstellar object 3I/ATLAS has sparked speculation and debate over ...

New polarimetry data on interstellar comet 3I/ATLAS reveals bizarre refractory dust, proving this alien visitor formed in a ...