galaxies
A Black Hole has been Burping for 100 Million Years
Black holes are gluttonous behemoths that lurk in the center of galaxies. Almost everybody knows that nothing can escape them,…
A Star was Blocking a Galaxy, but Now it’s Moved Enough That Astronomers can Finally Examine What it Was Hiding
One of the biggest puzzles in astronomy, and one of the hardest ones to solve, concerns the formation and evolution…
How Do Stars Get Kicked Out of Globular Clusters?
Globular clusters are densely-packed collections of stars bound together gravitationally in roughly-shaped spheres. They contain hundreds of thousands of stars.…
Astronomers Detect the Faint Glow of Stars in Between Galaxies
Not all stars are members of galaxies. Some stars exist in the space between galaxies, though they didn't form there.…
Gaze Slack-jawed at the Haunting Beauty of Galaxy NGC 1566, Captured by JWST, Processed by Judy Schmidt
Here's an absolutely stunning new view from the James Webb Space Telescope of a dusty spiral galaxy, NGC 1566. Amateur…
Andromeda Contains the Remnants of a Recent “Feeding Event”
There's a growing body of evidence that galaxies grow large by merging with other galaxies. Telescopes like the Hubble have…
The Perfect Tidal Tail Connects These two Galaxies Seen by Hubble
Sometimes it's tempting to imagine a supernatural hand behind the arrangement of celestial bodies. But the Universe is big, huge…
Too Many Supernovae Can Slow Star Formation in a Galaxy
Interstellar winds are powerful agents of change. For one thing, they can interrupt or shut down the process of star…
JWST Sees the Same Galaxy From Three Different Angles Thanks to a Gravitational Lens
The Webb Telescope can see distant galaxies incredibly well, even when they are gravitationally lensed by galactic clusters.
Webb and Hubble Peer Into the Wreckage of a Galactic Collision
Earlier this month we asked, what could be better than a pair of galaxies observed by a pair of iconic…