Astronauts 'tweet' from space

Astronauts are giving a behind the scenes look at the space shuttle Atlantis's high-risk mission to service the Hubble telescope, thanks to micro-blogging sensation Twitter.

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<p><a href="http://www.physorg.com/news161316427.html">Astronauts 'tweet' from space</a></p> <p> Astronauts are giving a behind the scenes look at the space shuttle Atlantis's high-risk mission to service the Hubble telescope, thanks to micro-blogging sensation Twitter.</p>