galaxy clusters
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…
Matter makes up exactly 31.5±1.3% of the Universe
Weighing the universe is a tricky task, but a team of astronomers have used a clever technique to measure how…
The Universe is the Same, Everywhere We Look. Even More than Cosmologists Predicted
The Universe is about 10% smoother than we expect, and astronomers aren't entirely sure why.
Complete and Total Mayhem in a Distant Galaxy Collision
A cluster of galaxies is nothing trivial. The shocks, the turbulence, the energy, as all of that matter and energy…
Astronomers See a Pileup of 14 Separate Galaxies in the Early Universe
Using the ALMA array, international team of scientists recently observed 14 galaxies in the early Universe that are about to…