What's New?


Featured Tool:
Tired of the same old planets? Mars just isn't red enough for you? Why not Build Your Own Solar System and find out if life could exist there!



Saturn Ratings

  • Astronomy Classroom
  • Explore the Possibilities
  • Solar System Calculators
  • Solar System Viewers
  • Working With Orbits
  • Orbital Integrators
  • Extragalactic
  • Index of all Tools


  • Tuesday's
    Astro Fact:
    Did you know that flying a Boeing 747 to the Moon non-stop would take 17 days? 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