galaxy clusters

Blue blobs turn out to be orphan star clusters made of gas cast-off from galaxies

Stripped gas condenses to form massive blue stars.

By Phil Plait 10 months ago

Over a dozen voracious supermassive black holes seen in a distant galaxy protocluster

Supermassive black holes get an early start in galaxy clusters.

By Phil Plait 1 year ago

Surprisingly high fraction of dead galaxies found in ancient galactic city

What's killing these extremely distant galaxies?

By Phil Plait 1 year ago

Some 200 lasers recreated the heat and magnetism of a monster galaxy, right here on Earth

Something about galaxy clusters almost broke the laws of physics. Almost.

By Elizabeth Rayne 1 year ago

Astronomers spot the construction site for a galactic supercity

Protocluster seen 11 billion light years from Earth.

By Phil Plait 1 year ago

What is causing galaxies in the Virgo Cluster to die?

A new survey aims to find out.

By Phil Plait 1 year ago

Young galaxies throw tantrums one moment, sleep the next

Young galaxies can burst into star formation and then fall asleep. Now researchers are finding out why.

By Elizabeth Rayne 1 year ago

Galactic death: Some galaxies hit the gas, live fast, and die young

By Phil Plait 1 year ago

Like a runaway locomotive, NGC 1265 is leaving a 'smoke' trail behind it

By Phil Plait 2 years ago

What's the matter with the Universe? About 31%.

By Phil Plait 2 years ago