Milky Way s Tiny Satellite Galaxies May Help Solve Dark Matter Mystery
Wednesday, October 16, 2013 - 06:30
in Astronomy & Space
As galaxies go, these are a bunch of wimps. The so-called ultrafaint dwarfs are like ghost galaxies--tiny wisps against the sky that were first discovered less than a decade ago. Now about a dozen... -- Read more on ScientificAmerican.com