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| Milky Way over Nevada (Photo by Steve Jurvetson) |
Angels aren’t the only ones with halos. Turns out that galaxies have them too.
Our very own Milky Way has a hot and clumpy one. There’s even a fancy name for it: the circumgalactic medium, but you can call it CGM for short. It serves as a sort of recycling center for stars. Dying and birthing stars eject their hot gases into this halo, resulting in what goes around comes around.
And the clumps? These congeal in regions where this recycling most occurs. We on Earth can surely be inspired by this waste-not-want-not galactic example.
Resources
https://phys.org/news/2020-10-milky-galaxy-clumpy-halo.html
Copyright October 26, 2020 by Linda Van Slyke All Rights Reserved
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