The Vera C. Rubin Observatory has released its first images, including a photo called the “Cosmic Treasure Chest,” showcasing about 10 million galaxies and marking a major milestone in an $810 million ...

They often twirl around heavier ones, like our Milky Way, as satellite dancers. The dark matter distribution of a Milky Way ...

The only place that's likely to happen is at the very center of our galaxy. And, for a while, there was an excess of ...

A massive, spacetime-warping cluster of galaxies is the setting of today's NASA/ESA Hubble Space Telescope image. The galaxy ...

For nearly a century, scientists around the world have been searching for dark matter—an invisible substance believed to make up about 80% of the universe's mass and needed to explain a variety of ...

New simulations suggest that dozens of ultra-faint “ghost” galaxies may be orbiting the Milky Way, hidden from current ...

Tony Tyson’s cameras revealed the universe’s dark contents. Now, with the Rubin Observatory’s 3.2-billion-pixel camera, he’s ...

A colossal cluster of galaxies is bending the very fabric of space—and it’s the focus of this week’s breathtaking image from ...

Evidence is mounting that cosmic dark energy, long thought constant, may weaken with time - potentially altering the fate of the universe.

Now, scientists have found a clever way to track it down: by using fast radio bursts (FRBs), brief, powerful flashes of ...

In a chilled lab where temperatures drop close to absolute zero, a speck of magnet hovers in place. This tiny magnet, ...

The James Webb Space Telescope (JWST) has provided groundbreaking insights into the Bullet Cluster, a cosmic collision zone ...