Galaxies
Latest about Galaxies
![Coulntless stars and points of light in black space. In the center, a bright blue light shiens, radiating outward a faint blue hue.](https://cdn.mos.cms.futurecdn.net/u7C7SQApreaoZrDBvBt8FT-320-80.jpg)
X-rays reveal secret gas in huge and distant galaxy cluster
By Keith Cooper published
The Euclid and XMM-Newton missions have combined to show the hidden, hot gas that fills an immense galaxy cluster 2.7 billion light-years away.
![Two barred spiral galaxies, known as NGC 7733 and NGC 7734, are in the process of merging. The lower galaxy has a dusty knot atop its upper arm, which marks a third galactic companion.](https://cdn.mos.cms.futurecdn.net/mMo5LNhsnHJtAvBA6DkxcX-320-80.jpg)
Is the universe still making new galaxies?
By Paul Sutter published
It's a fun question to tackle because it lets us dig into the messy, complicated, beautiful process of galaxy formation.
![An artist's impression of the warped disk of the Milky Way, surrounded by a slightly flattened dark matter halo.](https://cdn.mos.cms.futurecdn.net/H6pWUsGKAPxGZ799Zr3KLM-320-80.jpg)
Astronomers measure 'warp speed' of Milky Way galaxy
By Keith Cooper published
The Milky Way is warped, and the alignment of this warp is precessing backwards around the galaxy under the influence of a squashed dark matter halo.
![a radio galaxy with dark wispy structures expanding out from the center with a bright yellow light at the heart.](https://cdn.mos.cms.futurecdn.net/pEyP7SwknzEFAggoS3tyDm-320-80.jpg)
What are radio galaxies?
By Robert Lea last updated
Reference A radio galaxy is a type of galaxy with giant regions of radio emissions that reach far beyond its visible structure. We explore them in more detail here.
![A black background with glowing white blue and yellow orbs scattered across it, some within a yellow dotted circle](https://cdn.mos.cms.futurecdn.net/4M4TAhJ2L4wRRQ4d456R8Z-320-80.png)
Scientists finally found 2 of the Milky Way's missing satellite galaxies. What could this mean for astronomy?
By Robert Lea published
Astronomers have found two of the Milky Way's missing satellite galaxies, a step toward earning a better understanding of dark matter.
![The clashing galaxies NGC 4568 (bottom) and NGC 4567 (top) as seen by the Gemini North telescope in Hawai‘i](https://cdn.mos.cms.futurecdn.net/nbEjhsFjpXZDu6YMPibYuL-320-80.png)
How are galaxies destroyed?
By Paul Sutter published
Space mysteries If you're in the mood to destroy an entire galaxy, you have several options, depending on your desired level of destructiveness.
![A bright white disk with an orange sphere at its center against a dark background and surrounded by white smoke](https://cdn.mos.cms.futurecdn.net/4vbMuomVK89AWeUqz6BngD-320-80.png)
The Milky Way's last major act of galactic cannibalism was surprisingly recent
By Robert Lea published
Gaia discovers the Milky Way's last major act of galactic cannibalism was surprisingly recent, as the space telescope counts the "wrinkles" of our galaxy to retell its history."
![a white spiral of stars and gas in space](https://cdn.mos.cms.futurecdn.net/cUnCVWm2sE4wZQGyXJJVNZ-320-80.jpg)
Does the Milky Way orbit anything?
By Skyler Ware published
Do galaxies, including our own Milky Way, orbit anything in the universe?
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