This Earth Day, we’re asking you to share with us your inspiring vision about what NASA’s exploration of Earth means to you. Check out the rules and other details at 1.usa.gov This video is public domain and can be downloaded at: svs.gsfc.nasa.gov Like our videos? Subscribe to NASA’s Goddard Shorts HD podcast: svs.gsfc.nasa.gov Or find NASA Goddard Space Center on facebook: www.facebook.com Or find us on Twitter: twitter.com