The Vera C. Rubin Observatory has started releasing its first discoveries: including supernovae, variable stars and asteroids ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

A team of scientists says it's possible to use tiny ripples in space and time, or gravitational waves, to measure the rate at ...

Physicists are scrambling to understand why dark energy is weakening. In a surprising twist, we must now reconsider the ...

Astronomers have long known the universe is expanding—but exactly how fast remains one of the biggest mysteries in cosmology. Different techniques for measuring the Hubble constant stubbornly disagree ...

The largest stars in the universe live the life of a rock star - they are born brilliant, live fast and die young. If that is ...