The mysterious substance that binds galaxies together could naturally be "in tune" with a hidden fifth dimension, according ...

Physicists have spent decades treating mass as something the universe simply hands to particles, a property encoded in equations rather than explained from first principles. A new proposal argues that ...

Researchers have proposed that black holes stop evaporating at the last moment, leaving behind tiny remnants that preserve ...

For over a century, scientists have thought of time as a fundamental property of the universe. But the more researchers seek to understand time’s ultimate nature and the mechanics behind its emergence ...

String theory and its extensions propose that the elementary constituents of matter are not point particles but one-dimensional strings whose vibrational modes manifest as observed particles and ...