Voyager 2 Spacecraft
"The Voyager 2 flyby of Neptune in 1989 was one of the big events that really got me into science and astronomy," an anonymous reader writes. "My dad and I went to our local planetarium, which was live-streaming the images from NASA as they came in. Even though I don't really work in astronomy now, I wanted a tattoo to commemorate my continued love of astronomy and one of my dearest childhood memories. My tattoo is the Voyager 2 spacecraft with Neptune and Triton."