mike massimino

90. Down to Earth SPACEMAN Mike Massimino shares his journey as a NASA astronaut

Mike Massimino served as a NASA astronaut from 1996 to 2014 and is a veteran of two space flights to the Hubble Space Telescope. He became the first person to tweet from space and played himself in several episodes of the CBS sitcom The Big Bang Theory. A graduate of Columbia University & MIT, Mike…

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