Universe

A colorful quirk of quantum optics could lead to significant advances in quantum communication and computing

In theory, physicists knew that antimatter should behave just like matter under gravity’s pull. But until now, no one had ever seen it happen

This enormous structure could help explain processes close to the dawn of time—or it could be a random cosmic fluke

Black holes in the extraordinarily distant cosmos are out of tune with their host galaxies, offering insights into their formation

Scientists debate what the future of the cosmos looks like and whether space will ever stop getting bigger and bigger

After years spent languishing in obscurity, proposals for a muon collider are regaining momentum among particle physicists

From dim red to brilliant blue, stellar colors span the spectrum—and reveal how much any star brings the heat

A new view of a record-shattering distant star shows it to be twice as hot as our sun and likely accompanied by a stellar companion

The latest data from the Muon g−2 experiment corroborates previous results, but clashing theoretical predictions leave physicists without a clear conclusion

Marvel for a moment at the Milky Way’s night-sky spectacle—and the scientific revolutions it has sparked

Astronomers are now seeking to pinpoint the origins of an exciting new form of gravitational waves that was announced earlier this year

The European Space Agency's ambitious Euclid space telescope is on its way to decoding the secrets of dark matter and dark energy