NASA’s Chandra Observatory captures a composite image of the Champagne Cluster, showing two merging galaxy clusters, hot gas distribution and dark matter structures.

A supermassive black hole residing within the Large Magellanic Cloud (LMC) - a satellite galaxy - is on a collision course ...

The James Webb Space Telescope has captured stunning images of Sagittarius B2, a massive molecular cloud near the Milky Way's ...

There is only one way the Cavaliers can shed the label of being too soft to win an NBA championship: Win a bruising rebounding battle in a high-stakes game when the entire country is watching. The ...

When a multibillion-dollar AI data center proposal pitted developers against a handful of rural Arizona residents, the locals ...

A Christmas Tree-shaped star cluster inside NGC 2264 reveals active star formation 2,700 light-years from Earth.

Just in time for Christmas, a vast star-forming region shaped like a Christmas tree is lighting up space 2,700 light-years from Earth.

This Christmas, astronomers are highlighting a spectacular region of space that looks remarkably like a glowing holiday tree.

In any other year, the supermassive black hole mentioned above would probably scoop the award for most striking outburst, but not in 2025. This year, that accolade goes to a flare designated ...

So, to create a must-read story list for you, we asked our staff to select their favorite pieces of 2025. Alas, while you're ...

Understanding how the Milky Way formed means looking far beyond the bright spiral you see in the night sky. A new study led ...

Looking ahead, the comet will pass roughly 33 million miles from Jupiter in March 2026. Loeb noted the scientific value: monitoring 3I/ATLAS with the Juno spacecraft could reveal unusual activity, ...