Coursera Solar System Assignment with added following planets: - 

Mercury, Venus, Mars, Jupiter, Saturn, Neptune, Uranus, Pluto.

All planets in addition to Earth and its moon revolve around the sun while the Earths moon also revolves around the Earth. 

Casual comets are spawned. Click on any planet / comet to focus on it.
 

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Android.zip 20 MB
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MacOS.app.zip 34 MB
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Windows Platform.zip 55 MB
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Windows.zip 29 MB