# @nasa on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/CXkU77ON-o1
- **Gondola URL:** https://gondola.cc/posts/11733109-nasa-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/thumbnails/bb4b7342a2.jpg
- **Posted:** 2021-12-17T02:43:08.000+00:00
- **Account Owner:** NASA (@NASA) — https://gondola.cc/NASA

## Caption

🔭 Look, Ma, four cavities!

A pair of supermassive black holes could be behind a set of cosmic cavities, or bubbles, recently spotted by our orbiting nasachandraxray observatory. The four bubbles were detected 3.9 billion light-years from Earth in a galaxy cluster, a collection of hot gas, dark matter and thousands of galaxies that is among the largest structures in the universe held together by gravity.

Many galaxy clusters have a pair of cavities, caused by a single black hole spewing out twin streams of matter from the cluster's center, but this is the first known instance of a galaxy cluster with four massive bubbles instead of two. Astronomers hypothesize that a single black hole which quickly flipped on its side could also be behind this galactic oddity.

These images show the galaxy cluster RBS 797 as seen in X-rays by Chandra, visualized here in blue and white, alongside a photo of the cluster as seen in visible light by nasahubble.

Credits: 
Images 1 and 3: NASA/CXC/Univ. of Bologna/F. Ubertosi
Image 2: NASA/STScl/M.Calzadilla

#NASA #Space #Astronomy #ChandraXRay #BlackHole #BlackHoles #DontForgetToFloss

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## Tags

nasa, space, chandraxray, dontforgettofloss, blackhole, blackholes, astronomy

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