galaxies
Latest about galaxies
![This Hubble Space Telescope photograph showcases the majestic spiral galaxy UGC 2885, located 232 million light-years away in the northern constellation Perseus.](https://cdn.mos.cms.futurecdn.net/Tqq3BVZZAkbUyGvZmSfjQW-320-80.jpg)
What is a galaxy?
By Adam Mann published
Learn all about different types of galaxies in the universe and how they came together.
![A colorful shot of nebula and stars in deep space.](https://cdn.mos.cms.futurecdn.net/gjwF3CaJSee2Hr3LUodYyJ-320-80.jpg)
What color is the universe?
By Harry Baker published
Scientists have figured out the average color of the universe by recording visible light from more than 200,000 galaxies.
![Illustration of a giant atom in outer space](https://cdn.mos.cms.futurecdn.net/mB7tuVXixJq9J9Cds75gjK-320-80.jpg)
How many atoms are in the observable universe?
By Harry Baker published
Atoms are the building blocks of all matter in the universe, but how many are there in the part of it we can see from Earth?
![Cosmic arc conceptual image](https://cdn.mos.cms.futurecdn.net/SYd2omnyoMGNLeuHTHaUu6-320-80.jpg)
'Giant arc' stretching 3.3 billion light-years across the cosmos shouldn't exist
By Adam Mann published
How big is too big?
![Man sits on top of Demerdzhi mountain under the Milky Way at night in Alushta, Crimea.](https://cdn.mos.cms.futurecdn.net/UZ8HaEpxNgaSuRdwX5FTYb-320-80.jpg)
What is the Milky Way?
By Paul Sutter published
Find out all the science of the Milky Way, including the size of our home galaxy, who discovered it and how it's on a collision course with another galaxy.
![This animation shows the distribution of the dark matter, obtained from a numerical simulation, at a redshift z~2, or when the Universe was about 3 billion years old.](https://cdn.mos.cms.futurecdn.net/cxBbDjv2C8XTDDBBtKfYGg-320-80.gif)
Dark matter map reveals new filaments connecting galaxies
By Stephanie Pappas published
A new map of the local universe created with machine learning reveals filaments of dark matter connecting galaxies.
![An image of an ORC, by Bärbel Koribalski, based on ASKAP data, with the optical image from the [Dark Energy Survey](https://www.darkenergysurvey.org)](https://cdn.mos.cms.futurecdn.net/cGowQq4LgpBC4gZpLopQhK-320-80.jpg)
Astronomers keep finding mysterious circular rings in the sky and don't know how to explain them
By Adam Mann published
Mysterious circular objects in the distant universe are challenging for astronomers to explain.
![A supermassive black hole partially consumes an orbiting giant star. In this illustration, the gas pulled from the star collides with the black hole's debris disk and causes a flare.](https://cdn.mos.cms.futurecdn.net/YBz5eac5C5iBwzbPymLioX-320-80.jpg)
Monster black hole spews energy as regularly as Yellowstone's 'Old Faithful'
By Mindy Weisberger published
Regular energy flares that emerge from galaxy ESO 253-3 are produced by a black hole about 20 times larger than the one at the center of the Milky Way.
Sign up for the Live Science daily newsletter now
Get the world’s most fascinating discoveries delivered straight to your inbox.