A merger of galaxies and their supermassive black holes in the ZS7 system was spotted by the James Webb Space Telescope. The ...

Another batch of the ‘impossible’ galaxies turned out not to be standard galaxies at all, but a new type of object that ...

Astronomers discovered the 40,000th near-Earth asteroid, taking the tally to 40,155 per NASA (as of the first week of ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

One of the greatest mysteries the James Webb Space Telescope (JWST) was developed to investigate was the birth of ...

From an interstellar comet to breathtaking auroras and from brand-new rockets to iconic space telescopes, here are some of our favorite images from the cosmos in 2025 ...

Supermassive black holes are an anomaly that sits quietly at the centers of galaxies, holding gas and stars closer with their ...

Mysterious ‘little red dots’ seen by the James Webb Space Telescope can be explained by a new kind of black hole enshrouded ...

One of the greatest mysteries the James Webb Space Telescope (JWST) was developed to investigate was the birth of ...

Caltech is a place unlike any other, an Institute that is truly “small but mighty.” Its small size and the expertise of its ...

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

James Webb Space Telescope detects extreme nitrogen in galaxy GS 3073, providing evidence of supermassive Population III stars and their role in forming early supermassive black holes.