SpaceX is aiming to launch its Starship Flight 9 test mission no earlier than Tuesday at 7:30 p.m. EDT (2330 GMT), but only ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Who's up for a Florida launch? Weather permitting, a SpaceX rocket could be seen in Cocoa Beach, Merritt Island, Melbourne, ...

It wasn’t until Albert Einstein that we developed a more sophisticated mathematical understanding of time and space that allowed physicists to probe deeper into the connections between them.

In Newtonian physics, space and time had their independent identities, and nobody ever got them mixed up. It was with the theory of relativity, put together in the early 20th century, that talking ...

Researchers have found that the supermassive black hole in the center of our Milky Way galaxy, known as Sagittarius A*, is spinning so rapidly that it is altering the fabric of space-time around it.

There were a lot of reasons to expect the subjects’ performance to suffer as a result of their time in space. Among the psychological and emotional factors Dev and her colleagues considered were ...