Our sun is travelling around the center of the Milky Way at 220 kilometers per second, says Gerry Gilmore with the Institute of Astronomy at the the University of Cambridge, referring to the fact that our Milky Way Galaxy lies inside a sphere, or “halo”, of dark matter that extends out far beyond the … Continue reading “Vast Dark Matter Halos” –Dwarf Relic Reveals First Galaxies More Massive than Thought