"Thanks to the high resolution of our new images, we detected a faint structure on the northeast side of this supernova ...

ESA's Gaia mission, the Very Large Telescope and other ground-based telescopes have discovered stellar black hole Gaia BH3.

A new study released on Thursday describes a search for what are called "microlensing" events, where a planet acts as a ...

A surprisingly well-formed spiral galaxy has been spotted just a billion years after the Big Bang, challenging long-held ...

New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against ...

A jaw-dropping video composite of the Milky Way showcases the awe-inspiring scale of the cosmos. The video, stitched together from a series of recent observations, reveals the vastness of our galaxy, ...

A sudden flash of light in 2020 caught the attention of astronomers scanning the sky. That brief signal, spotted by Caltech’s ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

A new University of Kansas survey of distant galaxies using the James Webb Space Telescope reveals never-before-seen star ...

The Andromeda Galaxy's family of dwarfs are an enigma. First it was the unusual flat plane around which more than half of ...

In our neighborhood of the Milky Way, we see a region surrounding the solar system that is far less dense than average. But ...