Mike Massimino is a former NASA Astronaut, an New York Times bestselling author, a Columbia University engineering professor, and an advisor at The Intrepid Sea, Air and Space Museum. A veteran of two space shuttle missions and four spacewalks, Mike was the first person to tweet from space, holds the team record for the most spacewalking time on a single space shuttle mission, and successfully completed the most complicated spacewalk ever attempted to repair the Hubble Space Telescope. Mike persisted through three rejections over 7 years on his way to becoming an astronaut, including overcoming a medical disqualification by training his eyes and brain to see better. He has had a recurring role as himself on the CBS comedy "The Big Bang Theory," is the host for the Science Channel Series "The Planets and Beyond," was featured in National Geographic Television's "One Strange Rock," is a frequent expert guest on news programs and late night television (including Good Morning America, The Today Show, CNN, Fox News Channel, MSNBC, CNBC, and The Late Show with David Letterman), and has been called the real-life astronaut who inspired George Clooney's role in the movie "Gravity." He lives in New York City.

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Pasha D. Lychnikoff and Michael Massimino in The Big Bang Theory (2007)

Michael Massimino in The Big Bang Theory (2007)

Simon Helberg, Pasha D. Lychnikoff, and Michael Massimino in The Big Bang Theory (2007)

Scott D. Altman, Megan McArthur, Andrew J. Feustel, Michael T. Good, John M. Grunsfeld, Gregory C. Johnson, and Michael Massimino in Hubble (2010)

Scott D. Altman, Megan McArthur, Andrew J. Feustel, Michael T. Good, John M. Grunsfeld, Gregory C. Johnson, and Michael Massimino

Scott D. Altman, Toni Myers, Megan McArthur, John M. Grunsfeld, Gregory C. Johnson, and Michael Massimino at an event for Hubble (2010)

Mayim Bialik, Kaley Cuoco, Johnny Galecki, Simon Helberg, Jim Parsons, Melissa Rauch, and Kunal Nayyar in The Big Bang Theory (2007)

Gabrielle Union, Emma Roberts, Desi Lydic, Andrew Call, Tom Hopper, and Poppy Liu in Space Cadet (2024)

Mike Judge in Beavis and Butt-Head Do the Universe (2022)

Josh Charles, Hilary Swank, and Talitha Eliana Bateman in Away (2020)

Michael Massimino

Michael Massimino

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