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Thursday, December 5, 2019


Ooooh hello dear reader! A bunch of Chinese astronomers discovered (P) 19 dwarf galaxies that have way less dark matter than expected, and they don't know how this be possible, considering that in "the standard cosmological model, dark matter drives the structure formation of galaxies and constructs potential wells within which galaxies may form" (P).

This dumb blog, though, has a theory...

The true reason why galaxies with less dark matter than expected exist (by @sciencemug)
The true reason why some dwarf galaxies miss a lot of dark matter (by @sciencemug)

[Vending machine free pic by Mitchell Luo (source: Unsplash); Stars background is a Public Domain pic by NASA (source: Wikimedia Commons); Spiral Galaxy pic by ESA/Hubble is under Creative Commons Attribution 4.0 International license (source: Wikimedia Commons); Dwarf Galaxy is a Public Domain pic by NASA (source: Wikimedia Commons); the planet sketch on top of the vending machine is by @sngshp; all pics adapted by @sciencemug]

Universe composition: 
- 5%, matter [you, Bernard* (the weird little guy depicted on top of the vending machine, with a "B" all over its/his/her... Well, the part between the head and the legs), vending machines, hippos, the annoying neighbor, the annoying neighbor's annoying pet(s), Monica Bellucci, the piece of lettuce stuck between your front teeth during your dream job interview/first date with your huge crush of ten years, Tom Selleck's mustache, all the things inside a woman purse, all the things disappeared inside a woman purse, broccoli, the stars, the stars which don't go to the talk shows 'cause they're too busy doing nuclear fusion, aaaand so on)
- 27% dark matter (who knows, I just draw my two cents 'bout it)
- 68% dark energy (see above)

* Ok, ok, technically Berny's not matter, is an idea (and not even a slightly brilliant one), but with billions of worlds out there, well, who knows...

P- Guo, Q., Hu, H., Zheng, Z., Liao, S., Du, W., Mao, S., Jiang, L., Wang, J., Peng, Y., Gao, L., et al. (2019). Further evidence for a population of dark-matter-deficient dwarf galaxies. Nat Astron 1–6.

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