Top 10 Strange Objects Sent into Space

Family Portrait
It wasn't enough that Charles Duke became the youngest person ever (and only 1 of 12 total) to walk on the moon when he acted as lunar-module pilot aboard Apollo 16 in 1972. To make more of an imprint on the space rock, Duke decided to leave behind a portrait of his family (Duke, his wife Dotty and their sons Charles and Tom) on the moon's surface. And to be sure that everyone knew about it, Duke took a picture of the photograph with his Hasselblad 70-mm camera. The back of the photo, which is packed in transparent foil, reads: "This is the family of Astronaut Duke from Planet Earth. Landed on the Moon, April 1972."

• Animals in Space