- Astronomers discovered that old, massive galaxies tend to be messy and disorderly, and set out to explain why.
- Computer simulations revealed that large ancient galaxies have likely been swallowing up their smaller neighbors for billions of years.
- This case of “cosmic munchies” results in unpredictable movement and a messy appearance.
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Thanks to high-powered telescopes, astronomers can peer into space and see distant galaxies of all shapes and sizes. Over the years, observations of many different galaxies have revealed some interesting trends, and explaining why those trends exist can teach us a lot about how our universe has evolved over billions of years.
In a new paper published in The Astrophysical Journal, researchers tackle an issue they often see in particularly large, old galaxies. Massive ancient galaxies have a habit of looking a bit messy from afar. Movement within them tends to be unpredictable. The researchers now believe they have an explanation.
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Massive, ancient galaxies have been swallowing their neighbors for billions of years originally appeared on BGR.com on Thu, 23 Apr 2020 at 23:14:05 EDT. Please see our terms for use of feeds.
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