NGC 1270 is one of the most massive galaxies in the Perseus Cluster, but it doesn't quite match the stature of another elliptical galaxy in the cluster, namely NGC 1275. Lying outside the field of ...

Astronomers thought the Perseus cluster was a massive-but-stable grouping of galaxies, until they found hints of a collision with another cluster — but no one had identified a cosmic interloper.

Also known as Melotte 20, Collinder 39, and the Perseus Moving Group, this open cluster is a loosely bound association of stars. Skip to content Introducing the all-new Astronomy.com Forum!

Astronomers have solved a cosmic mystery, revealing the long-hidden object that collided with the Perseus cluster in a vast-scale hit-and-run billions of years ago.. Composed of thousands of ...

Perseus, the Greek mythological hero, ... Melotte 20, better known as the Alpha Persei Moving Cluster, is made up of about 50 stars (although some sources cite 10 times that many), ...

In 2002, when a NASA space telescope named Chandra studied the Perseus cluster, it detected wavelike movements in the gas, propagating outward like ripples in water.

The Perseus Double Cluster is 7,400 light years away from Earth. Each of these stars in the clusters are around 3 million years old, “babies in star time,” EarthSky wrote.

NASA released a sound from the black hole at the center of the Perseus galaxy cluster. What you'll hear is pressure waves emitted from the black hole causing ripples in the star cluster's hot gas.

The Perseus Cluster, with a total mass of 665 trillion times the mass of our sun, is one of the most massive nearby galaxy clusters. It's part of the Perseus-Pisces Supercluster, ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. This scene of cosmic chaos shows a section of the immense Perseus galaxy cluster, revealing ...