During Sally Ride EarthKAM missions (periods when the Sally Ride EarthKAM camera is operational), middle school students around the world can submit requests to capture photographs of specific locations. There are typically four missions a year. Students’ requests are relayed to a camera on the ISS. The camera snaps photographs of the designated locations, and the digitized images are transmitted from orbit through a TDRSS Ku band satellite link to Johnson Space Center Mission Control. The images ultimately are posted on the Sally Ride EarthKAM website, where students can view and study them.