Earth Day has been celebrated across the country for more than 50 years now, and the annual celebration is once again around ...

Heart disease remains the leading cause of death in the United States, accounting for one in five deaths. The inability of ...

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 ...