Sample 74220 is an unusual soil sample that was discovered at Shorty Crater during the Apollo 17 mission to the Moon.

Sample 74220 is an unusual soil sample that was discovered at Shorty Crater during the Apollo 17 mission to the Moon. The sample is part of the splatter from a volcanic eruption on the Moon that formed a pyroclastic deposit, and has the same age as the lunar Mare basalts – 3.6 billion years old.