The James Webb Space Telescope has revealed a rare "Einstein ring," revealing two distant galaxies in an optical illusion ...

Super-Earths can exist in wider orbits around their parent stars than was previously believed, suggesting these Earth-like ...

The school-bus-sized observatory launched on April 24, 1990 and overcame early setbacks to become one of the most ...

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it won’t be happy.

Let's turn the sun into a telescope. In fact, we don't have to do any work—we just have to be in the right spot.

The physique that changed the concepts of space and of time with the theory of relativity and the famous AND=MC2Nobel ...

Astronomers have detected a lone black hole drifting through the Milky Way—an unprecedented discovery made possible by ...

"All the odd shapes and swirling gas observed in the Perseus cluster now make sense within the context of a major merger." ...

A bold new theory suggests the universe didn’t begin with a single Big Bang, but instead unfolds through a series of ...

These series of step-like bursts happen so rapidly that they are difficult to observe as these singularities wink in and out ...

On Monday, the European Space Agency (ESA) launched the ACES set of atomic clocks. It will be docked to the International Space Station (ISS) to meas ...

There's no question that Albert Einstein was one of the greatest minds of his or any generation, but there was one problem he ...