Mr. Joel Szabat of Maryland appears before the Senate Committee on Commerce, Science, and Transportation as the nominee to be Assistant Secretary for Aviation and International Affairs at the Department of Transportation on Thursday, Aug. 23, 2018 in the Russell Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Mr. Joel Szabat of Maryland appears before the Senate Committee on Commerce, Science, and Transportation as the nominee to be Assistant Secretary for Aviation and International Affairs at the Department of Transportation on Thursday, Aug. 23, 2018 in the Russell Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Deputy Senate Sergeant at Arms Jim Morhard, center, appears before the Senate Committee on Commerce, Science, and Transportation as the nominee for Deputy Administrator of NASA on Thursday, Aug. 23, 2018 in the Russell Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)

Deputy Senate Sergeant at Arms Jim Morhard appears before the Senate Committee on Commerce, Science, and Transportation as the nominee for Deputy Administrator of NASA on Thursday, Aug. 23, 2018 in the Russell Senate Office Building in Washington. Photo Credit: (NASA/Bill Ingalls)