Expedition 54 Postflight Presentation at NASA Headquarters

NASA astronaut Mark Vande Hei speaks about his time onboard the International Space Station, Friday, June 15, 2018 at NASA Headquarters in Washington. Vande Hei and astronaut Joe Acaba answered questions from the audience and spoke about their experiences aboard the International Space Station for 168 days as part of Expedition 53 and 54. Photo Credit: (NASA/Joel Kowsky)