This were the glasses John Lennon was wearing when he was shot. His wife Yoko Ono kept them, along with the clothes he was wearing that day, to use it as a prove that violence is not the way. They are exhibited regularly.
Astronaut Edwin E. Aldrin Jr. takes a selfie on board of the Gemini 12 in 1966. Aldrin was the second human being to set foot on the Moon, after Armstrong. He spent twenty hours there and then came back. He then started to suffer depression and alcohol problems and retired.