Dark matter halo found around ancient 'cannibal' galaxy - CNN

Tucana II is a distant ultrafaint dwarf galaxy and is one of the most primitive galaxies of its kind. In addition to the metal-poor stars at its center, astronomers found even more primitive stars on the outskirts of the galaxy, suggesting it has an extended … https://www.cnn.com/2021/02/02/world/dark-matter-halo-ancient-galaxy-scn-trnd/index.html