galactic evolution
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…
The Milky Way's Disk is Warped. Is That Because our Dark Matter Halo is Tilted?
Astronomers have measured the Milky Way's shape and found that the disk is warped and not a flat spiral like…
The Early Universe Should Be Awash in Active Galaxies, but JWST Isn't Finding Them
Astronomers have found supermassive black holes in the centers of most galaxies. To get the black holes we see today,…
Could This Supermassive Black Hole Only Have Formed by Direct Collapse?
One of the outstanding mysteries in astronomy is how supermassive black holes gained so much mass so early in the…
What Would the Milky Way Look Like From Afar?
Even though we're embedded inside the Milky Way, we don't know precisely what our galaxy looks like. Astronomers have had…