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!
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!
Some Constructive Feedback on Feedback Models
For the first time, astronomers have detected the hot, diffuse circumgalactic medium — a perfect testbed for models of galactic feedback. So, how do our current models stack up against the new data?
FOCASing on the Metallicity Gradient of an Extremely Metal-poor Galaxy
Today’s authors explore a nearby analog of some of the earliest galaxies to form in the universe and measure a metallicity gradient.
Genetically modified galaxies: The impact of different merger histories on stellar haloes
How does a galaxy’s past impact its present day surroundings? Today’s authors use genetically modified simulations to investigate the effect of merger histories on stellar haloes.
Globular Cluster Olympics: Who Will Win the Least Metals?
A newly discovered Globular Cluster is one of the most massive and metal-poor in the Galaxy. In today’s paper, we examine the stars inside the cluster to see where it stands on the metal-poor podium.