After being given command of the International Space Station, Chris Hadfield posted this photo on Twitter of the side of the Canadarm2 robotic arm with the message, "Be proud of our achievements, but ... more 
After being given command of the International Space Station, Chris Hadfield posted this photo on Twitter of the side of the Canadarm2 robotic arm with the message, "Be proud of our achievements, but don't stop there. We're heading towards the less 
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SPACE.com | Photo By Canadian Space Agency
Thu, Mar 14, 2013 7:24 AM EDT