The moment humans first saw the whole Earth with their own eyes. Floating in space, the Apollo 8 crew saw the Earth at this unexpected angle, with North to the lower left. It was taken on the way to the Moon, from a distance of 16,800 miles (27,000 km).
Jim Lovell: “Boy, it's really hard to describe what this Earth looks like. I'm looking out my center window, which is a round window, and the window is bigger than the earth is right now. I can clearly see the terminator. I can see most of South America, all the way up to Central America, Yucatan, and the peninsula of Florida. There is a big swirling motion just off the east coast, and then going on over toward the east, I can still see West Africa, which has a few clouds right now. We can see all the way down to Cape Horn in South America.”
Michael Collins: “Good grief, that must be quite a view.”