We live in the present, moving through time. As events come and go, everything fades into the past. But what is time, really?

Recent scientific breakthroughs are making concepts once confined to science fiction, like time travel, seem tantalizingly ...

Researchers are using black hole “shadow” images to test whether Einstein’s relativity remains unshakable. With next-generation telescopes, they hope to spot telltale signs of alternative physics ...

Time passes at different rates depending on speed, gravity, and perception, with experiments showing differences from Mount ...

Interstellar comet 3I/ATLAS, which originated outside our solar system, has reportedly confirmed one of Albert Einstein's ...

Black holes are considered cosmic gluttons, from which not even light can escape. That is also why the images of black holes ...