Education Nasa Earth Day 2017 Nhq201704200100

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NASA Earth Day 2017 (NHQ201704200100)

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posted by alias NASA HQ PHOTO on Thursday 20th of April 2017 02:38:12 PM

Brian Campbell, Senior Earth Science Education and Communications Specialist at NASA's Goddard Space Flight Center, speaks at NASA's Earth Day event on Thursday, April 20, 2017 at Union Station in Washington, D.C. Photo Credit: (NASA/Joel Kowsky)

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