Astronaut Douglas Wheelock checked in on Foursquare on Friday, 220 miles above Earth, becoming the first person to use the location-based social network in space.http://feeds.feedburner.com/~ff/rss/...?d=yIl2AUoC8zA http://feeds.feedburner.com/~ff/rss/...?d=7Q72WNTAKBA http://feeds.feedburner.com/~ff/rss/...Yo:V_sGLiPBpWU http://feeds.feedburner.com/~ff/rss/...?d=qj6IDK7rITs http://feeds.feedburner.com/~ff/rss/...Yo:gIN9vFwOqvQ
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