U.S. Representative José Serrano, D-New York, asks a question after acting NASA Administrator Robert Lightfoot testified during a House Subcommittee on Commerce, Justice, Science, and Related Agencies hearing to review the Fiscal Year 2018 budget request for the National Aeronautics and Space Administration, Thursday, June 8, 2017 at the Rayburn House Office Building in Washington. Photo Credit: (NASA/Aubrey Gemignani)