Dark matter is slowing the spin of the Milky Way's galactic bar
June 14, 2021
by University College London
The spin of the Milky Way's galactic bar, which is made up of billions of clustered stars, has slowed by about a quarter since its formation, according to a new study by researchers at University College London (UCL) and the University of Oxford.
The researchers say it gives a new type of insight into the nature of dark matter, which acts like a counterweight slowing the spin.
