galaxies
Two Supermassive Black Holes on a Collision Course With Each Other
Galaxy collisions are foundational events in the Universe. They happen when two systems mingle stars in a cosmic dance. They…
The True Size of Galaxies is Much Larger Than We Thought
Ask most people what a galaxy is made up of, and they'll say it's made of stars. Our own galaxy,…
JWST Reveals Star Formation at Cosmic Noon
Understanding the star formation rate (SFR) in a galaxy is critical to understanding the galaxy itself. Some galaxies are starburst…
This Ancient Galaxy Merger Will Produce a very Luminous Quasar
In the contemporary Universe, massive galaxies are plentiful. But the Universe wasn't always like this. Astronomers think that galaxies grew…
Are Andromeda and the Milky Way Doomed to Collide? Maybe Not
Scientists discovered the Andromeda galaxy, known as M31, hundreds of years ago, and around a century ago, we realized that…
The JWST Reveals the Nature of Dust Around an Active Galactic Nuclei
Supermassive Black Holes (SMBHs) are located in the centers of large galaxies like ours. When they're actively feeding, they produce…
No Merger Needed: A Rotating Ring of Gas Creates A Hyperluminous Galaxy
Some galaxies experience rapid star formation hundreds or even thousands of times greater than the Milky Way. Astronomers think that…
Galaxies Regulate their Own Growth so they Don’t Run Out of Star Forming Gas
Look at most spiral or barred spiral galaxies and you will see multiple regions where stars are forming. These star…
Galaxies Filled With Old Stars Seen Shortly After the Big Bang
How can young galaxies in the early Universe have ancient stars? That's the question a team of astronomers set out…
Growing Black Holes Have Much in Common With Baby Stars
First looks would tell most observers that supermassive black holes (SMBHs) and very young stars have nothing in common. But…