Visitors look through virtual reality goggles at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)
Visitors look through virtual reality goggles at one of NASA's exhibits at the Earth Day event on Thursday, April 19, 2018 at Union Station in Washington, D.C. Photo Credit: (NASA/Aubrey Gemignani)