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Last updated on May 19, 2013 at 1:20 EDT
SOFIA
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SOFIA

January 4, 2013
While USRA's SOFIA education and public outreach director Dana Backman explains the difference between visible and infrared light, visitors to the exhibit in NASA Ames' main hangar watch infrared images of the radiation from their hands on a monitor at right. October 15, 2011 NASA / Dominic Hart