galaxy formation
Black Holes Can Halt Star Formation in Massive Galaxies
It’s difficult to actually visualise a universe that is changing. Things tend to happen at snails pace albeit with the…
JWST Sees a Milky Way-Like Galaxy Coming Together in the Early Universe
The gigantic galaxies we see in the Universe today, including our own Milky Way galaxy, started out far smaller. Mergers…
Here's How You Could Get Impossibly Large Galaxies in the Early Universe
A study by an Israeli team of astronomers offers a solution to the "impossibly massive" galaxies Webb observed.
A Star was Blocking a Galaxy, but Now it’s Moved Enough That Astronomers can Finally Examine What it Was Hiding
One of the biggest puzzles in astronomy, and one of the hardest ones to solve, concerns the formation and evolution…
Once Again, Galaxies Look Surprisingly Mature Shortly After the Beginning of the Universe
A young galaxy with the catchy, roll-off-the-tongue name A1689-zD1 has experts in galactic formation talking. Recent observations show that this…
If the First Black Holes Collapsed Directly, Could we Detect Radio Signals From Those Moments?
The birth of direct collapse black holes could be seen by radio telescopes in the near future.
Protogalaxy Cluster Found When the Cosmic Fog Was Starting to Clear, When the Universe Was Just 750 Million Years Old
Origin stories are a focus of many astronomical studies. Planetary formation, solar system formation, and even galaxy formation have long…
The galaxy with 99.99% dark matter isn’t so mysterious any more
The dwarf galaxy known as Dragonfly 44 caused a stir recently: apparently it had way, way more dark matter than…
Elliptical Galaxy Messier 110 Has a Surprising Core of Hot Blue Stars
Messier 110 (NGC 205) is a satellite of the Andromeda Galaxy. It's a dwarf elliptical galaxy, a common type of…
Astronomers Uncover Dozens of Previously Unknown Ancient and Massive Galaxies
An international team of astronomers led by the University of Tokyo used ALMA to view 39 previously-undiscovered ancient galaxies.