Henry Draper
1837-1882
American astronomer and professor of medicine who took the first photographs of the Orion nebula (1880) and the spectrum of a star (Vega, 1872). He built the instruments he used...
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Ralph Alpher, a physicist whose pioneering work on the underpinnings of the "Big Bang" theory went unheralded for years while others won a Nobel Prize, has died. He was 86.Alpher died Aug. 12 in Au...
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Henry Draper
'Big Bang' pioneer Ralph Alpher dies
