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/u/BinaryBlowup on I am Jeff Hoffman, MIT Professor of Aerospace Engineering and former NASA Astronaut. Ask Me Anything!

20 Feb 2015, 20:09 UTC
/u/BinaryBlowup on I am Jeff Hoffman, MIT Professor of Aerospace Engineering and former NASA Astronaut. Ask Me Anything!
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While I know making your own must be fun, you should get them to check out Kerbal space program

While I know making your own must be fun, you should get them to check out Kerbal space program

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