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Dark Matter

The Milky Way has two satellite galaxies, the Large and Small Magellanic Clouds. The orbits of these galaxies tells us that the mass in the halo around the Milky Way is 5 to 10 times greater than the mass we can see.

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Imagine the Universe! is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

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Project Leader: Dr. Barbara Mattson
Curator: Meredith Gibb
Responsible NASA Official: Phil Newman
All material on this site has been created and updated between 1997-2014.
This page last updated: Monday, 27-Sep-2004 11:26:11 EDT