50 Years ago, on August 23, 1966, Lunar Orbiter 1 snapped the first photo of Earth as seen from lunar orbit when the spacecraft was on its 16th orbit and just about to pass behind the Moon. The photo was transmitted to Earth and received at the NASA tracking station at Robledo De Chavela near Madrid, Spain. While a remarkable image at the time, the full resolution of the image was never retrieved from the data stored from the mission.
In 2008, this earthrise image was restored by the Lunar Orbiter Image Recovery Project at NASA Ames Research Center. The project obtained the original data tapes from the mission (the last surviving set) and restored original FR-900 tape drives to operational condition using both 60s era parts and modern electronics.
Here is a comparison of the full image in its original and restored context.
Center Number: 67-H-218
GRIN DataBase Number: GPN-2000-001588