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From New Atlas:
Some of the strongest evidence for dark matter to date has been discovered – and ironically, that's thanks to its absence. In a pair of studies published this week, astronomers have shed new light on dark matter through close observation of a galaxy previously found to have very little of the stuff, while the same team found a new example of a similar oddball galaxy.
It's generally believed that galaxies are held together through the gravitational influence of clumps of dark matter, so to find a galaxy with little to no dark matter was a surprise. And while it might sound like a strike against the theory, it actually ends up supporting it.
A Second Galaxy Missing Dark Matter in the NGC 1052 Group (DOI: 10.3847/2041-8213/ab0d92) (DX)
Still Missing Dark Matter: KCWI High-resolution Stellar Kinematics of NGC1052-DF2 (DOI: 10.3847/2041-8213/ab0e8c) (DX)
(Score: 2) by Gaaark on Wednesday April 03 2019, @10:45PM (2 children)
Okay, I guess I don't understand where you are going.
QI only deals with motion and speed: galaxies don't fly apart due to inertia.
--- Please remind me if I haven't been civil to you: I'm channeling MDC. ---Gaaark 2.0 ---
(Score: 1) by khallow on Wednesday April 03 2019, @11:12PM (1 child)
The problem here was motion and speed of rare sorts of galaxies that the other two theories have figured out how to shoehorn explanations for. The QI explanation is lacking since the galaxies in question are low density satellite galaxies, most of their mass got robbed by NGC 1052 in some long ago collisions. So they're precisely the sort of low local gravity objects that QI should be describing. Unless QI has the MOND issue where external gravitation fields (here from NGC 1052) cause the physics to somehow change.
(Score: 2) by Gaaark on Thursday April 04 2019, @01:37AM
run the numbers against his formula.
I'm betting you get the numbers you're looking for.
--- Please remind me if I haven't been civil to you: I'm channeling MDC. ---Gaaark 2.0 ---