This Earth Day, April 22, NASA invites you to celebrate our beautiful home planet by participating in a global social media event and local events around the country.
from NASA Breaking News http://www.nasa.gov/press-release/nasa-celebrates-earth-day-with-social-media-public-events
from NASA Breaking News http://www.nasa.gov/press-release/nasa-celebrates-earth-day-with-social-media-public-events
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