galactic evolution
Webb Confirms a Longstanding Galaxy Model
The spectra of distant galaxies shows that dying sun-like stars, not supernovae, enrich galaxies the most.
A New Catalog Charts the Evolution of the Universe Over Time
An atlas doesn’t seem to be an essential item in cars these days but think about them and most people…
Supermassive Black Holes Got Started From Massive Cosmic Seeds
One longstanding mystery in astronomy is how supermassive black holes got so heavy so early. JWST has shown evidence that…
Galaxies Evolved Surprisingly Quickly in the Early Universe
Anyone familiar with astronomy will know that galaxies come in a fairly limited range of shapes, typically; spiral, elliptical, barred-spiral…
Even Early Galaxies Grew Hand-in-Hand With Their Supermassive Black Holes
Almost every galaxy in the local Universe seems to contain a supermassive black hole. There's a direct relationship between the…
Webb Sees Dozens Of Young Quasars in the First Billion Years of the Universe
One of JWST's big tasks is to help astronomers understand how the early Universe came together, with dwarf galaxies merging…
Gigantic Galaxy Clusters Found Just Before They're Awash in Star Formation
Astronomers have found examples of giant galaxy clusters dozens of times larger than the Milky Way with all the raw…
The Early Universe Was Surprisingly Filled With Spiral Galaxies
The Milky Way is a mature, grand spiral galaxy, and so are many galaxies around us. Astronomers have assumed that…
Supermassive Black Holes Shut Down Star Formation During Cosmic Noon
Using data from Webb's NIRSpec instrument, an international team has confirmed that quasars shut down star formation in galaxies billions…
Polar Ring Galaxies Are Bizarre and Rare. Astronomers Just Found Two More
Many galaxies resemble the Milky Way, with billions of stars organized into a rotating, rotating spiral. There are other irregular…