On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

A bubbly-looking galaxy smashup called the Champagne Cluster offers a rare glimpse into cosmic collisions—and the hidden behavior of dark matter. The Champagne Cluster is a dramatic cosmic system ...

A galaxy cluster discovered on New Year’s Eve in 2020 shines in a new image from NASA’s Chandra X-Ray Observatory ...

Roughly 1,000 light-years away from Earth, a gigantic disk of gas and dust is swirling around a young star and giving rise to ...

Astronomers combined data from NASA’s JWST and Chandra X-ray Observatory to create a stunning new image of two merging spiral ...

Mid-infrared observations from NASA's James Webb Space Telescope, shown in white, gray, and red, are combined here with X-ray ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

Gamma-ray bursts (GRBs) are among the most powerful explosions in the universe, second only to the Big Bang. The majority of ...

"Hubble has given us a front row seat to the chaotic processes that are shaping disks as they build new planets — processes ...

You are watching a long-held idea in stellar physics face serious scrutiny. Researchers at Chalmers University of Technology, ...

This mash-up of data from the James Webb Space Telescope and the Chandra X-ray Observatory reveals two galaxies mid-collision ...

The image of Comet 3I/ATLAS was caught by Gemini North telescope atop Mauna Kea on the Big Island during a Shadow the ...