Keep track of the ever-expanding list of newly discovered planets orbiting distant suns at PlanetQuest 2.0, a revamped Website developed by NASA's Jet Propulsion Laboratory. It has images, "planet system visualizations," movies and games that simulate interstellar exploration, and even lets you install a desktop planet counter so that your computer always displays the latest tally.

Go to: http://planetquest.jpl.nasa.gov

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