Named in memory of Henry J. Moore (1928–1998). A geologist with the U.S. Geological Survey since 1960, Moore took part in the fledling astrogeology program helping to train the Apollo astronauts in impact geology prior to the moon landings. He participated in the analysis of the lunar samples they brought back and worked with the photographs of the moon’ surface taken from orbit. His experience in the selection of lunar landing sites transferred to the Mars Viking project. Moore’ work on the Mars Pathfinder mission and with its Mars rover, Sojourner, were among his last contributions. (M 34349) _ _.