A 'Blue Marble' image of the Earth taken from the VIIRS instrument aboard NASA's most recently launched Earth-observing satellite - Suomi NPP in this amazing space wallpaper.

China's Change'e 5-T1 brought home a rarely seen view of home — our blue marble is small as seen from the other side of the Moon.

NASA/Courtesy photo “The Blue Marble” is the first fully illuminated photograph of Earth taken from outer space in 1972 by the Apollo 17 crew as they made their way to the moon.

But while “Blue Marble” didn’t create an overnight revolution, it came to play an important role in the growing environmental movement. The first Earth Day had been celebrated on April 22, 1970.

The original "blue marble" shot was taken by the crew of Apollo 17 in 1972. Today, satellites are snapping some of the most spectacular photos of Earth.

NASA's iconic images of Earth from space date back to the late 1960s--with snapshots taken by Apollo astronauts. The modern "blue marble" images are captured by machines and they're not photos ...