Results for "Smithsonian Astrophysical Observatory"

1. SI History Chronology

   Dr. Eva J. Pell Appointed Under Secretary for Science

   • Date: August 13, 2009

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   Science Display

   • Date: c. 1930
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954
   • Creator: Tolman, Ruel P (Ruel Pardee) 1878-1954

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   SI Officials at East Door to SI Building

   • Date: 1915
   • Creator: Unknown
   • Creator: Unknown

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