: Lunar Module Pilot and the first professional geologist-astronaut to visit the Moon.
: Harrison Schmitt's expertise led to the discovery of "orange soil" at Shorty Crater, which was later identified as volcanic glass from a "fire fountain" eruption roughly 3.6 billion years ago. The Last Landing On The Moon
: The mission returned 110.5 kilograms (243.7 lbs) of lunar rock and soil, more than any other Apollo mission. The Long Hiatus : Lunar Module Pilot and the first professional
: Command Module Pilot, who remained in lunar orbit while his crewmates explored the surface. The Last Landing On The Moon