artistic view of Earth
Artistic view of Earth. Image credit: NASA
Join NASA and nearly 7 billion of your closest friends in this annual celebration of our planet that marks the importance of being good environmental stewards.

Go to http://www.nasa.gov/topics/earth/earthday/ .

For results from an online poll about NASA's greatest Earth hits, go to http://www.nasa.gov/topics/earth/earthday/greatest_hits.html .

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