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

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

Consciousness could be a fundamental part of reality, like gravity or matter, according to this controversial theory.

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

Mars, long admired for its rusty hue and alien deserts, may play a far greater role in shaping life on Earth than once ...

We rank the best Xbox 360 games of all time. From Halo 3 and Gears of War to Skyrim, Mass Effect 2, and Call of Duty 4, these classics defined the HD online gaming era.

Comet 3I/ATLAS, only the third interstellar object ever observed, is making its final pass through our skies, offering a rare ...

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

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