| http://www.w3.org/ns/prov#value | - At 1:00 pm Eastern Time today, you can begin following along the STS-135 Shuttle Countdown and Milestones.Of course, many Tweetup participants, NASA public affairs and other employees will be madly tweeting every update as the countdown draws nearer, so if you choose some space folks to follow, you will get the scoop from moment to moment!
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