Join Us Sept. 24 for the STS-127 Space Shuttle Crew's Tweetup in Washington

Thanks for your interest in the Tweetup. Registration is now closed. Attendees will receive an e-mail with more details on the event. NASA will host a Tweetup with space shuttle Endeavour's STS-127 crew from 3 to 5 p.m. EDT Sept. 24 at NASA Headquarters in Washington. The astronauts will discuss their recent mission to the International Space Station.A Tweetup is an informal meeting of people