NASA astronaut Scott Kelly is seen in a pre-recorded message from aboard the International Space Station during the Global Citizen 2015 Earth Day event on Saturday, April 18, 2015 on the Washington Monument Grounds in Washington, DC. Kelly arrived at the International Space Station in March of 2015 and will spend a year living and working in space before returning in March of 2016.

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Keywords: 2015, citizen, day, dc, earth, global, joel, kelly, kowsky, launch, mall, nasa, national, rocket, scott, space, washington