For centuries, Europeans thought that eternal daylight saturated the cosmos. The shift to a dark universe has had a profound ...

Discovered on July 1 by the NASA-funded ATLAS telescope in Chile, 3I/ATLAS is only the third confirmed visitor from another ...

The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

We have all the latest images of our interstellar visitor from ESA's Juice, Hubble, NASA's STEREO, and even a photobomb from ...

“The fact that we can now watch stars explode and immediately see the structure of the material being blasted into space is ...

Images captured by NASA's Parker Solar Probe as the spacecraft made its record-breaking closest approach to the sun in ...

Like many kids, Shaan Patel spent nights staring at the sky in awe, wondering what existed beyond the stars. That curiosity ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. Here's a look at the latest photo of the intriguing ...

Three thought experiments involving “demons” have haunted physics for centuries. What should we make of them today?

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand ...

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

For much of the twentieth century, scientists expected the expanding universe to slow over time. The opposite turned out to ...