Joel Kontinen
"Dark matter, which accounts for around 85% of the matter in the universe, seems to be absent from the galaxy NGC 1277, part of the Perseus Cluster of galaxies. ,"
The galaxy is situated some 240 million from Earth and. it is the first galaxy that does not contain dark matter.
This is a serious blow to big bang cosmology, The big bang has other problems as well, for instance missing antimatter, cosmic inflation, quantum fluctuation.
Source:
Lea, Robert, 2023, Bizarre
'relic galaxy' is missing a key component of the universe, and scientists are
stumped. Live Science, 23 July.,