Happy Birthday!Happy Birthday to Alan Bean, the fourth person to walk on the moon, seen here using a
Happy Birthday!Happy Birthday to Alan Bean, the fourth person to walk on the moon, seen here using a Brunton compass to make strike and dip measurements during geological training in 1964 in the Marathon Basin area of West Texas. Series: Astronaut Geology Education Files, 1962-1975. Record Group 57: Records of the U.S. Geological Survey, 1839 - 2008. (National Archives Identifier 12012050). -- source link
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