Universe

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

New measurements from Japan’s Subaru telescope have helped researchers study the matter-antimatter asymmetry problem

Astronomers are piecing together the final moments of supernova 2023ixf and learning more about it than any other in recent history

Voracious black holes feeding on matter in the early universe display the curious spacetime phenomenon known as time dilation

Earth-based analogs are opening new frontiers in studies of the superdense interiors of neutron stars