Nick Hague and Christina Koch, two astronauts currently living and working on the International Space Station, are seen on the screen during a live uplink and panel discussion with moderator NASA astronaut Tracy Caldwell Dyson, NASA Administrator Jim Bridenstine, NASA Associate Administrator for the Human Exploration and Operations Mission Directorate, Bill Gerstenmaier, and NASA Deputy Associate Administrator for Exploration, Steve Clarke, at the "Future of Space" STEM event, Monday, April 29, 2019 at NASA Headquarters in Washington. Photo Credit: (NASA/Aubrey Gemignani)