Geologist Roald Fryxell examines lunar rocks in Houston after all six manned moon landings. Fryxell was initially asked simply  to present to the lunar teams on core-sample analysis, but so impressed NASA that he was asked to join the analysis team.  A leader in the field of geoarchaeology, Fryxell was the co-principal investigator with Dr. Richard Daugherty of the Marmes Rockshelter site and designed the apparatus used for collecting the lunar rocks. A lunar crater is named Fryxell in his honor.