Invisible Milky Way Satellite Uncovered With Help from NERSC
Thursday, March 24, 2011 - 06:30
in Astronomy & Space
(PhysOrg.com) -- Astronomers predict that large spiral galaxies, like our Milky Way, have hundreds of satellite galaxies orbiting around them. While a few satellites are visible, like the Magellanic Clouds, many other galaxies are too dim to see. Scientists suspect that these faint satellite galaxies are primarily comprised of mysterious dark matter, which makes up 85 percent of all matter in the universe and so far remains undetected.