Eminent Astronomers Brian Marsden, 73, and Allan Sandage, 84, Die From Illnesses

Astronomer Brian Marsden died Nov. 18, 2010, at the age of 73. He was the longtime director of the Minor Planet Center, a clearinghouse of information about comets and asteroids. (Image credit: Harvard-Smithsonian Center for Astrophysics)

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Brian Marsden

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Allan Sandage

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