Argentine astronomer calculated orbits of Halley's Comet and Saturn's outermost moon [Archive] - In Search of Chicas

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10-07-2009, 09:00 PM

Argentine astronomer and mathematician whose calculations helped determine the orbit of Saturn's outermost moon, Phoebe, as well as Halley's Comet, died Wednesday. He was 91. Zadunaisky was a pioneer ...

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