Two golf balls and a javelin

NASA maintains a jaw-dropping catalog of all human-made material left on the Moon, and it’s dauntingly huge (that said, it hasn’t been updated since 2012, so some items are missing, namely the remnants of the crashed Beresheet probe and Chandrayaan-2 Moon lander). NASA’s list contains a surprising assortment of items, including lens caps, hammers, tripods, nail clippers, and earplugs.
Among the more entertaining items are two golf balls and a javelin (a modified scoop handle), which NASA astronaut Alan Shepard brought to the Moon in 1971 during the Apollo 14 mission. As Shepard famously said after striking the second ball, it traveled “miles and miles and miles” owing to the low gravity. The balls and javelin are the most famous sporting goods in space, earning a place in our museum.