page_title: William R. Muehlberger
section_title: External links
hierarchical_section_title: William R. Muehlberger / External links
caption_attribution_description: English: Muehlberger training astronauts on a geology field trip to Marathon Basin
context_page_description: William Rudolf "Bill" Muehlberger, Professor of Geology at University of Texas at Austin, was the geology Principal investigator of both the Apollo 16 and 17 missions to the Moon, for National Aeronautics and Space Administration. He died of natural causes on September 14, 2011.
  The Apollo 16 Moon rock, Big Muley, is named after Muehlberger.
context_section_description: 1999 Interview by Carol Butler
caption: Muehlberger training astronauts on a geology field trip to Marathon Basin
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