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KansDem
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Thu Sep-15-11 01:27 PM Original message |
| Was Pluto a metaphysical concept before it was discovered? |
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In 1979 or 1980, I heard Clyde Tombaugh speak at the University of Kansas about his discovery of Pluto. It was a fascinating lecture about how astronomers believed there was something out there but could not see it. Guided by the premise that planets moved but stars didn't, he (and other astronomers) poured over thousands and thousands of photos of space until he found the two photos that showed a "dot" had moved: Pluto was "discovered."
 My question to DU astronomers: Was Pluto a metaphysical concept before it was discovered? |
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