Time moves differently in space. Near black holes, gravity slows clocks and stretches seconds. This explainer reveals how time bends and affects astronauts and Earth.

In this video I show you what it actually looks like to drop different things into a black hole! I talk about gravitational ...

Will two rare supernovas finally tell us how fast the universe is expanding? Perhaps, but we'll have to wait for it for them ...

AI will serve humanity only if we endow our creations with moral restraint rather than mathematical optimization.

Hazel Chase, a mother of five, says she narrows everything down to God’s grace each time she reflects on the fact that she ...

Carefully timed bursts of carbon dioxide are emerging as a surprising tool to help the brain wash away toxic proteins linked to Parkinson’s disease. Instead of a new pill or implant, researchers are ...

Johann Strauss II’s waltz titled “The Blue Danube” opens Stanley Kubrick’s space station scene in 1968’s epic film “2001: A Space Odyssey.” The fabulous triple meter’s simplicity ...