NASA Earth Day 2019

Visitors view samples of different types of algae at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)

Visitors view samples of different types of algae at one of NASA's exhibits at the Earth Day event on Monday, April 22, 2019, at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)

Photographer NASA/Joel Kowsky
Album 20190422_Earth_Day
Location Union Station
DCEarth DayUnion StationWashington