Earth Day started in 1970 when people — including Wisconsin Sen. Gaylord Nelson — brought attention to the impact oil spills, pollution and smog were having on the planet. "Then in January ...

Our National Air and Space Museum explains how it became an inspiration and symbol for continuing Earth Day celebrations. Explore events, exhibitions, resources, and podcasts that highlight ...

D.C. "Earth to Space: Arts Breaking the Sky" is set to transform the United States' national cultural hub into a launch pad for three weeks of live performances, films, art, interactive exhibits ...