Currently, there are several bags of human waste filled with urine, vomit and faeces on the moon. To make space for pounds of lunar samples, astronauts ditched their garbage on the moon's surface.
Richard Nixon was the president of the United States during all six human missions to the moon. He's the only politician who has his signature on the moon.
Astronaut Alan Shepard famously brought the head of a six-iron golf club on the Apollo 14 mission. Although he played golf on the moon, he did not bother to go pick up the balls. So, there are two golf balls still sitting on the moon.
During the Apollo 15 mission, astronaut David Scott left a 3.5-inch abstract aluminium statuette created by Belgian artist Paul Van Hoeydonck on the moon next to the plaque with the names of 14 astronauts who passed away in previous missions.
Astronaut Charles Duke left a 3-by-5-inch photo of his family on the moon's surface. "This is the family of Astronaut Duke from Planet Earth. Landed on the Moon, April 1972," he wrote on the back of the photo.
Gene Shoemaker was a US geologist who studied terrestrial craters and discovered many celestial bodies. When he died, his ashes were transported to the moon in a capsule with a quote from Romeo and Juliet. He is the only person who had their ashes flown to the moon.
Forrest Myers created a small ceramic wafer measuring three-quarters of an inch by half an inch. Title Moon Museum, the chip featured tiny artworks from six artists, including Claes Oldenburg, David Novros and Andy Warhol. Although NASA didn't agree to transport it, Myers reportedly told an Apollo 12 engineer to attach it to the lunar module.
In 1971, Astronaut David Scott recreated Galileo Galilei's experiment on the moon by dropping a feather and a hammer. Both fell at the same speed and landed on the lunar surface.