Astronomers have completed the most comprehensive census of active galactic nuclei (AGN) to date, providing the clearest ...

Astronomers have long puzzled over how some massive galaxies stop forming stars and remain dormant for billions of years—even ...

From a window on the International Space Station, astronauts have captured a rare view of a nearby galaxy caught in the act ...

The latest data release from the Sloan Digital Sky Survey (SDSS) includes observations revealing the internal structure and composition of nearly 5,000 nearby galaxies observed during the first three ...

The James Webb Space Telescope observed 19 nearby face-on spiral galaxies in near- and mid-infrared light as part of its contributions to the Physics at High Angular resolution in Nearby GalaxieS ...

According to the standard model of cosmology, the vast majority of galaxies are surrounded by a halo of dark matter particles. This halo is invisible, but its mass exerts a strong gravitational pull ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...

The James Webb Space Telescope has captured images of three nearby galaxies with unprecedented resolution at infrared wavelengths, giving them a first look at star formation, gas and dust. Data has ...

Image of the irregular dwarf galaxy Sextans A, located at a distance of about 4 million light years from us, towards the edge of the Local Group, captured by the VST (VLT Survey Telescope), an Italian ...

The universe teems with systems of two stars orbiting each other in a seemingly endless cosmic dance. Scientists have long hypothesized that one out of three massive stars in these binaries have their ...

Webb reveals a bridge of stars linking two nearby dwarf galaxies, offering a look at how gravity reshapes galaxies and sparks ...

Observations of ultra-massive galaxies, each containing more than 100 billion stars, show that less than 2 billion years ...