Apollo 14 was the eighth crewed mission in the Apollo program. It was the third mission to land on the Moon. The nine-day mission left the Earth on January 31, 1971, and landed on the Moon on February 5. The Lunar Module landed in the Fra Mauro formation; this had been the target of the ill-fated Apollo 13 mission. During the two walks on the Moon's surface, of moon rock was collected. Several experiments, including seismic studies, were carried out. Commander Alan Shepard famously hit two golf balls on the lunar surface with a makeshift club he had brought from Earth. Command Module Pilot Stuart Roosa took several hundred seeds on the mission, many of which were planted on return, resulting in the so-called Moon trees. The pilot of the Lunar Module was Dr. Edgar Mitchell.