Earth Day

Learn about Earth Day founder Gaylord Nelson (1916–2005) and how environmental disasters of his day inspired the creation of Earth Day in 1970. On December 7, 1972, Apollo 17 astronauts captured a now-iconic image of Earth, sometimes called the “blue marble.” Our National Air and Space Museum explains how it became an inspiration and symbol for continuing Earth Day celebrations

What inspires you? Take a look at posters, buttons, stamps, and other environmental objects from our collections.