galaxy clusters
Evidence of Dark Matter Interacting With Itself in El Gordo Merger
The Standard Model of particle physics does a good job of explaining the interactions between matter's basic building blocks. But…
Powerful Jets From a Black Hole are Spawning Star Clusters
Supermassive black holes are messy feeders, and when they're gorging on too much material, they can hurl high-energy jets into…
“Seeing” the Dark Matter Web That Surrounds the Coma Cluster
According to our predominant cosmological models, Dark Matter makes up the majority of mass in the Universe (roughly 85%). While…
This Distant Galaxy Cluster is Totally Relaxed, Unharassed for a Billion Years
In the span of a human lifetime, much of the Universe seems unchanging. But that's an illusion; things are always…
Wandering Stars Have Been Adrift Between Galaxies for Billions of Years
A new study using Hubble data has revealed that "wandering stars" that inhabit galaxy clusters have been there for billions…
Webb Stares Deeply Into the Universe, Showing How Galaxies Assemble
The James Webb Space Telescope is delivering a deluge of images and data to eager scientists and other hungry-minded people.…
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,…
Lasers Recreate the Conditions Inside Galaxy Clusters
Galaxies don't exist in a vacuum. Ok, maybe they do (mostly, since even interstellar space has some matter in it).…
Astronomers see an Enormous Shockwave, 60 Times Bigger Than the Milky Way
Astronomers have a thing for big explosions and collisions, and it always seems like they are trying to one-up themselves…
By Measuring Light From Individual Stars Between Galaxy Clusters, Astronomers Find Clues About Dark Matter
Astronomers have been able to measure an extremely faint glow of light within galaxy clusters, and that measurement came with…