The search for dark matter requires all the best models, theories, and ideas we can throw at it. A new paper by Julia Monika ...

This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

NASA's James Webb Space Telescope has been unwaveringly focused on our universe. With its unprecedented power to detect and ...

Because it doesn't interreact with light or electromagnetism, dark matter exists to us only through its influence on visible ...

Dark matter makes up 85% of the universe, but researchers, including Vera Rubin herself, historically have had a hard time ...

Scientists think they found evidence of weird ancient stars called "dark stars" that are powered by dark matter instead of ...

Astronomers have uncovered the most promising evidence yet for the existence of dark stars—giant cosmic objects powered by ...

The James Webb Space Telescope's ancient "little red dot" galaxies have been seen as a sign of "broken cosmology." Feeding ...

I’ve spent much of my long life studying — and trying to understand — the history of the universe. Along the way, I have been constantly reminded that science is essentially international: Science ...

The James Webb Space Telescope (JWST), launched in 2021, is currently the most powerful space observatory ever built.

Readers doubtless know that metals expand when heated. As explained in a NASA blog post that’s a problem for space telescopes because if their components warm and expand it can mean that the shape of ...