Another, more rational explanation, is the strange yellow is, in fact, glare from the sun striking the camera lens.
The original Apollo 12 image was taken from US space agency NASA’s website.
The photograph’s caption reads: “A high oblique view of the Moon, looking northwest over the Ocean of Storms (right) and the more rugged area around the crater Kepler A (out of view at left).
“While astronauts Charles Conrad Jr and Alan Bean descended in the Lunar Module “Intrepid” to explore the Ocean of Storms region of the moon ... Read even more
