Physicists reveal that thousands of primordial black holes may drift through your home every year, undetected. Learn how these tiny, ancient black holes could be linked to dark matter and what that ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from the early cosmos.

He’s already the world’s richest man. His latest move is making Elon Musk look increasingly like the poster boy for extreme ...

From a particle smasher encircling the moon to an “impossible” laser, five scientists reveal the experiments they would run ...