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  • Tuesday's
    Astro Fact:
    Did you know that Saturn's moon Hyperion rotates chaotically, making the length of the day there change unpredictably? More...
    The Astronomy Workshop has averaged about 20,000 page views per year and has now outlived its counter!  

    Materials for Students and Instructors.

    Created by Dr. Douglas P. Hamilton and students at U. Maryland. We gratefully acknowledge support from NSF (1998-2003) and NASA (2003-2010). About Us