On Christmas Eve in 1972, humanity received a gift: A portrait of the Earth as a ... and part of the green movement's iconography, Muir-Harmony said. Prior to the "Blue Marble," campaign images ...

One of the big components of Earth Day is the idea of shifting human actions to be more in line with what is good for the environment, or 'going green'. Use these green slogans to help share this ...

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 ...