Qa'dah 15, 1431, Oct 23, 2010, SPA -- A National Aeronautics and Space Administration (NASA) astronaut on Friday used the popular location-sharing social networking website Foursquare to “check-in” from space. Douglas Wheelock, who is orbiting the Earth aboard the International Space Station, sent a message online, saying he had “unlocked the ‘NASA Explorer Badge'” on Foursquare. Foursquare, which has over four million members, allows users to broadcast their locations to other users of the service and earn “badges” for the places they check in from. The NASA Explorer Badge can be earned by those who are about 350 kilometers above the Earth traveling at about 28,000 kilometers per hour, the social networking website said. Foursquare co-founder Dennis Crowley said that “check-ins from around the world have been cool,” adding that the company is excited to “partner with NASA to help users explore the space program and the universe.”
