Astronaut Scott Tingle speaks about his experiences on the International Space Station during the Golden Spike Sesquicentennial Celebration May 10, 2019, at Promontory Summit, Utah. Event festivities included an “Innovation Summit” that focused on STEM-related activities hosted by Hill Air Force Base, industry, and secondary and higher education. (U.S. Air Force photo by R. Nial Bradshaw)

Download Image: Full Size (3.41 MB)
Photo by: r. nial bradshaw |  VIRIN: 190510-F-OD616-0002.JPG