Evan Haning, wtop.com
As the space shuttle performs its last mission, why not do some extraterrestrial exploration yourself? Solar System Scope lets you surf the universe to a background of relaxing space music.
The interactive 3D display allows visitors to spin and examine the planets, and see their distance in light years from individual stars.
This site also includes an interactive desktop, "Season Scope," for $12. The Solar System Scope is free.
(Copyright 2011 by WTOP. All Rights Reserved.)
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