Galaxies
Latest about Galaxies
![purple clouds of gas in space](https://cdn.mos.cms.futurecdn.net/PAVDCAe7WdJetcXcf7fpe3-320-80.jpg)
The Milky Way's monster black hole let out a huge blast 200 years ago. We can now listen to its echo (video)
By Keith Cooper published
NASA's X-ray observatory detected the echo of a flare likely caused when an object, perhaps a gas cloud or star, was ripped apart by our galaxy's black hole.
![a spiral galaxy with a bright dot at one end](https://cdn.mos.cms.futurecdn.net/wthF9f9baMk8moBmw5vYMV-320-80.jpg)
See new supernova shine bright in stunning Pinwheel Galaxy photo
By Brett Tingley published
The Gemini North telescope turned its gaze toward the Pinwheel Galaxy, offering a crystal-clear view of a new supernova discovered in May 2023.
![a purple cloud of gas in space](https://cdn.mos.cms.futurecdn.net/jWX6FepMU9cByN57FFyDBC-320-80.jpg)
Galaxy group blasts out record-breaking tail of hot gas after gobbling up neighbor (video)
By Robert Lea published
A monstrous galactic cluster is devouring another group of galaxies whole, causing it to emit a 1.5 million light-year-long trail of hot gas from its rear — the largest of this type ever seen.
![Image showing dozens of faraway galaxies in deep space.](https://cdn.mos.cms.futurecdn.net/C2xHVEoft4ZiiXbpdr2H9E-320-80.jpg)
Dark matter atoms may form shadowy galaxies with rapid star formation
By Paul Sutter published
Dark matter, the invisible material that makes up the vast majority of the universe's mass, may collect itself to form atoms, a new simulation shows.
![a bright white spiral in space](https://cdn.mos.cms.futurecdn.net/A9g7gwBvUw94oWHJGoLcWJ-320-80.jpg)
New Milky Way map reveals the magnificent messiness of our galaxy
By Paul Sutter published
Astronomers have used the youngest objects in the Milky Way to build a new map of the galaxy's spiral arms, and the results are far messier than expected.
![The narrow galaxy elegantly curving around its spherical companion in this image is a fantastic example of a truly strange and very rare phenomenon — gravitational lensing.](https://cdn.mos.cms.futurecdn.net/UrQze9GAdPWZC8giRZin4G-320-80.jpg)
A cosmic magnifying glass: What is gravitational lensing?
By Robert Lea published
Reference Gravitational lensing is a powerful tool for telescopes such as the James Webb Space Telescope as it images some of the most distant and faint early galaxies.
![a spiral galaxy in deep space with a bright flash of light on one of its arms](https://cdn.mos.cms.futurecdn.net/yNbBEPgkTrjLVW8warZfe4-320-80.jpg)
How to see the new supernova in the Pinwheel Galaxy
By Brett Tingley published
A star in the Pinwheel Galaxy has exploded into a new supernova that was confirmed just last week. Here's how to see it for yourself in the night sky.
![two galaxies in deep space side by side, the one of the left a roughly circular shape, the one on the right resembling a fishhook.](https://cdn.mos.cms.futurecdn.net/ZUCPV8a2B5n5wGQjYJMKHH-320-80.png)
Milky Way's cosmic neighbors help bring ancient galaxies into focus
By Robert Lea published
Astronomers are snooping on the Milky Way's galactic neighbors to gain insights about the ancient galaxies being viewed by the James Webb Space Telescope.
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