What's up in
New calculations suggest physicists may someday discover a fundamental theory of gravity, but it could require a radical new perspective on the universe.
Physicists have devised experiments that can probe the interface between quantum mechanics and general relativity.
Physicists have discovered a jewel-shaped geometric object that challenges the notion that space and time are fundamental constituents of nature.
New findings suggest that beneath the surface of quantum theory lies a vibrant string theory world where some matter corresponds to black holes in higher dimensions.
If a new hypothesis about black hole firewalls proves correct, at least one of three cherished notions in theoretical physics must be wrong.
Get highlights of the most important news delivered to your email inbox