Meet the great-great-grandparents of galaxy clusters
JWST has found the oldest galaxy cluster ever, and studying it might give us some clues about the history of modern-day clusters.
JWST takes a peek at the first ever galaxies
Brand new data could force us to re-think how galaxies form and evolve in the early Universe — but there’s no need to panic!
Filaments in the Firmament Fend Off Fiery Fury
In a galaxy cluster menaced by twin fire-breathing supermassive black holes, can some flimsy fibers blunt the carnage?
A Radio Phoenix Rises from Intergalactic Ashes
Today’s authors peer deep into a galaxy cluster to look for signs of a radio phoenix spreading its wings!
How to turn two galaxies into ten
A group of galaxies — some rich in dark matter, and some lacking dark matter completely — could be explained by a violent, destructive event from their past.
Stare into the Void
The distribution of galaxies clusters (BAOs) are a beloved tool for cosmological analysis. But what about cosmic voids? Stare into the void, and you might just learn something new!