CFO NASA Headquarters' Jeff DeWit, Robyn Gatens, Deputy Director, International Space Station at NASA Headquarters, and Bill Gerstenmaier, Associate Administrator, NASA's Human Exploration and Operations Mission Directorate, NASA  Headquarters, sit during a news conference announcing that NASA is opening the International Space Station for commercial business, so U.S. industry innovation and ingenuity can accelerate a commercial economy in low-Earth orbit, at the NASDAQ Market site at Times Square in New York City, U.S., June 7, 2019.  REUTERS/Shannon Stapleton