galaxy clusters

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).…

4 months ago

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…

6 months ago

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…

2 years ago

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…

2 years ago

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.

2 years ago

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…

2 years ago

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…

4 years ago

Are Little Blue Dots in the Hubble Frontier Fields Precursors to Globular Clusters?

Using data from the Hubble Frontier Fields program, a team of astronomers has produced a study that indicates how globular…

5 years ago

A Snapshot of a Galactic Crash

Some galaxies shine with a red ghostly glow. Once these galaxies stop forming new stars, they can only host long-lived…

8 years ago

Hubble Spots the Ghostly Light From Dead Galaxies

In a patch of sky 3.5 billion light-years away there are hazy elliptical galaxies, colorful spirals, blue arcs and distorted…

8 years ago