The Sagittarius A* supermassive black hole at the core of the Milky Galaxy may be "warping the spacetime surrounding it into ...

A speech by science adviser Michael Kratsios has attracted attention from people who think he means the U.S. now has time ...

"Warp drives" used by super-advanced alien civilizations may create specific space-time ripples in their wake that we can spot from Earth, a new paper argues. However, the jury is still out on ...