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The top documents tagged [great comets]
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great comets
Comet.docx
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Comets were discovered by danish astronomer tycho brahe in 1577. Haleys comet was named after comond halley. Isaac newton showed that a comets movements.
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Philosophical Consequences of Light Pollution Ana Luiza Leite.
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Comet ISON Comet of the Century Or Another Kohoutek?
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Comet ISON
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