Kjell Lindgren
Astronaut Kjell Lindgren, a 1995 graduate of the U.S. Air Force Academy, is shown here on the International Space Shuttle in 2015. Lindgren spoke to cadets Oct. 20, 2017 about his experience on the ISS and the challenges he had to overcome to fulfill his dream of becoming an astronaut. 2017(NASA photo)

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Photo by: NASA |  VIRIN: 171025-F-RB000-001.JPG