Since Apollo 12, Astronaut Alan Bean started a tradition to throw your silver astronaut pin into a crater on the moon, since you were getting a gold one once you returned.
![Since Apollo 12, Astronaut Alan Bean started a tradition to throw your silver astronaut pin into a crater on the moon, since you were getting a gold one once you returned.](https://images.squarespace-cdn.com/content/v1/5983dc02d7bdcee0bc8e54bf/1501818822526-02T2GLMQJR6788PHM11G/image-asset.png)
Alan Bean left a memento on the Moon: his silver astronaut pin.[8] This pin signified an astronaut who completed training but had not yet flown in space; he had worn it for six years. He was to get a gold astronaut pin for successfully completing the mission after the flight and felt he wouldn't need the silver pin thereafter.[8] Tossing his pin into a lunar crater extended the common tradition among military pilots to ceremonially dispose of their originally awarded flight wings. @Curionic
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