What does NASA's exploration of Earth means to you? Let us know in a video!
The contest ends on May 27, we'll feature the best entry – chosen by a panel of NASA scientists and communicators – on www.nasa.gov.
Check out the rules and other details at http://1.usa.gov/eYvaO9
This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?10760
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