Astronomers have observed a star wobbling in its orbit around a ravenous supermassive black hole that is ripping it apart and ...

Albert Einstein's general theory of relativity describes gravity as the warping of space-time geometry by mass, a concept distinct from Isaac Newton's absolute space and time, and has been empirically ...

The universe began with a bang—an explosion so intense, it forged the fabric of space and time itself. This pivotal moment, known as the Big Bang, marked the birth of everything we see, know, and are.