The controversy over the universe's expansion rate continues with a new, faster estimate.
Physicists create quantum entanglement, making two distant objects behave as one.
Cosmologists propose a groundbreaking model of the universe using string theory.
A well-known cosmologist comes out with very stark warnings about particle accelerators.
Our experience of time may be blinding us to its true nature, say scientists.
Stephen Hawking has accepted an offer to go to space. He's one of the world's most famous scientists, who's been paralyzed due to ALS for much of his life.