universetoday.com
Galactic Building Blocks - Universe Today
The current view of galactic formation is that galaxies form from a “bottom-up” method. In this picture, small dwarf galaxies, full of metal poor stars, were attracted by dark matter halos in the early universe which merged into larger galaxies. Many of those metal poor stars can still be seen today in the halo of … Continue reading "Galactic Building Blocks"