State of NASA

Acting NASA Administrator Robert Lightfoot discusses the fiscal year 2019 budget proposal during a State of NASA address Monday, Feb. 12, 2018 at NASA's Marshall Space Flight Center in Huntsville, Alabama.  Photo Credit: (NASA/Bill Ingalls)

Acting NASA Administrator Robert Lightfoot discusses the fiscal year 2019 budget proposal during a State of NASA address Monday, Feb. 12, 2018 at NASA's Marshall Space Flight Center in Huntsville, Alabama. Photo Credit: (NASA/Bill Ingalls)