Study claims Milky Way dark matter half what scientists thought

http://www.astronomy.com/news/videos...ntists-thought

"The current idea of galaxy formation and evolution, called the lambda cold dark matter theory, predicts that there should be a handful of big satellite galaxies around the Milky Way that are visible with the naked eye, but we don't see that," Kafle said. "When you use our measurement of the mass of the dark matter, the theory predicts that there should only be three satellite galaxies out there, which is exactly what we see: the Large Magellanic Cloud, the Small Magellanic Cloud, and the Sagittarius Dwarf Galaxy."

University of Sydney astrophysicist Professor Geraint Lewis, who was also involved in the research, said the missing satellite problem had been "a thorn in the cosmological side for almost 15 years."

It may solve the satellite galaxy problem, which was already fitting the
MOND model perfectly, but it still doesn't solve the problem of what
Dark Matter could be.

Also it may bring up another problem. If the Milky Way has half the Dark
Matter previously thought, that would also mean Andromeda does too, and
so does every other galaxy in the universe. So the amount of Dark Matter
has just dropped by half, even though the CMB curve data supposedly says
we have the perfect amount of Dark Matter right now. So how are they
going to explain away that discrepancy between the amount seen in
galaxies vs. the amount supposedly calculated from the CMB data?

Now it's possible this only applies to the Milky Way, it may have
unusually low amount of Dark Matter. But they've been seeing the same
satellite galaxy problem throughout most of the near universe. Are all
of these galaxies in the near universe unusual too? What is it about our
part of the universe that makes us so unusual? Etc.

Yousuf Khan