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Lisa
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It's Too Hot
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Lisa
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Comet Encke was "discovered" in 1786, 1795,1805, and 1818 by different astronomers. These comets were found to be the same only after orbital calculations in 1819 by the German astronomer Johann Encke, who then predicted its return in 1822.
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Lisa
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Floating in an inner tube on a pond in Maine
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Lisa
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Watch Out For Trees
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Lisa
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Retrograde motion is an effect of changing perspective. Inferior planets Mercury and Venus show retrograde motion on either side of inferior conjunction. They "overtake" Earth as they pass between Earth and the Sun.
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Lisa
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Is it Massachusetts or Florida outside?
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Lisa
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Planespotting Tales
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Lisa
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First discovered in 1826, the Bug Nebula is one of the brightest planetary nebulae. The central star is thought to have an extremely high temperature, and its intense heat lights up the surrounding stellar material.
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DJ:
Lisa
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Lisa's college radio career turns 35 today
