Using NASA's Chandra spacecraft and ESA's XMM-Newton satellite, astronomers have investigated the galaxy NGC 7793, searching ...

This serene spiral galaxy hides a cataclysmic past. The galaxy IC 758, shown in this NASA/ESA Hubble Space Telescope image, ...

Astronomers have identified a new kind of cosmic explosion extreme nuclear transients so powerful they outshine typical ...

Ancient supernovas may have blasted Earth with powerful radiation, causing dramatic changes in our climate, and could do so ...

New NASA breakthroughs in space observation reveals black holes firing jets at nearly light speed and ancient cosmic events ...

Supermassive black holes that seem too large to exist in the early universe may have grown from primordial black holes formed ...

The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

A study using the NASA’s Chandra X-ray Observatory and other X-ray telescopes has revealed that "an exploded star can pose more risks to nearby planets than previously thought." The Chandra team ...

Behind this galaxy’s calm facade lies the fingerprint of a long-dead giant star. A violent supernova once rocked its ...

From distant supernova remnants, to colorful mosaics of giant galaxies and nebulae, check out these 7 alluring deep universe ...