Of all the planets NASA has explored, none have matched the dynamic complexity of our own. Earth is a very special place. From the vantage point of space, the perspective of sky and sea, and all across the land, we study our planet not only to learn about it, but also to protect it.
Earth Day 2020: NASA Puts Space to Work for the Planet
NASA’s Office of Planetary Protection
NASA Celebrates Earth Day
ESA astronaut André Kuipers and astronaut Don Pettit greet WWF
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