You have probably seen this image of the Earth before. This was the way the Earth appeared to the final astronauts to land on the moon in 1972. It has since become the quintessential Earth portrait, used more often than any other global image of the Earth. This is probably due to its beauty but also worth mentioning the relative rarity with which we get to see a full globe image taken of the Earth in one snapshot. Only missions and probes that leave the vicinity of the Earth are able to do this and some other popular Earth portraits have been taken by Galileo, Messenger… there is the famous Earth/Moon portrait taken by Voyager 1 and of course several from various Apollo missions.