President Barack Obama congratulates MESSENGER Principal Investigator, director of Columbia University's Lamont-Doherty Earth Observatory, Sean Solomon, after awarding him the National Medal of Science, the nation's top scientific honor,Thursday, Nov. 20, 2014 during a ceremony in the East Room of the White House in Washington. MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) is a NASA-sponsored scientific investigation of the planet Mercury and the first space mission designed to orbit the planet closest to the


President Barack Obama congratulates MESSENGER Principal Investigator, director of Columbia University's Lamont-Doherty Earth Observatory, Sean Solomon, after awarding him the National Medal of Science, the nation's top scientific honor,Thursday, Nov. 20, 2014 during a ceremony in the East Room of the White House in Washington. MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) is a NASA-sponsored scientific investigation of the planet Mercury and the first space mission designed to orbit the planet closest to the Sun.


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