NASA’s fleet of science satellites and research aircraft are at work around the world 24/7. They help scientists discover just how our living planet really works. Take a look at some of the insights NASA gleans from them and don’t forget to celebrate Earth Day today!
And, in honor of Earth Day, we also wanted to mention National Park Week. Service men, women, and their families can visit any of the 401 national parks for free until April 28!
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