NASA Administrator Bill Nelson, right, talks with Heather Hanson from NASA’s Goddard Space Flight Center about Earth Day and the interactive exhibits NASA has featured inside Union Station in Washington, Friday, April 22, 2022. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Bill Nelson, left, talks with NASA team members about Earth Day during his tour of NASA hands-on exhibits inside Union Station in Washington, Friday, April 22, 2022. Photo Credit: (NASA/Bill Ingalls)