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Dark Matter Quiz

  1. We know that Dark Matter exists because we have found some here on Earth, and its name comes from its almost black color.

  2. Scientists can deduce the presence of Dark Matter from:


  3. How much more material is there in clusters of galaxies than we would expect from the galaxies and hot gas we can see?


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This page last updated: Wednesday, 15-Sep-2004 11:44:23 EDT