NanoSail-D will next be observable with the naked eye from the continental United States, approximately Friday, Feb. 25 through Monday, Mar. 7. NanoSail-D unfurled the first ever 100-square-foot solar sail in low-Earth orbit on Jan. 20 and has been seen and imaged by individuals in several countries around the world. NASA has partnered with SpaceWeather.com to encourage observations of NanoSail-D. Spaceweather.com is offering cash prizes for the best images of this historic, pioneering spacecraft in the amounts of $500 (grand prize), $300 (first prize) and $100 (second prize). World-wide observers have already been successful in capturing images of NanoSail-D as it darts across the sky with a digital camera.
For more information visit http://www.nasa.gov/mission_pages/smallsats/nsd_tracking.html