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Comets

When have comets been spotted?

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June 21, 2017 9:18AM

Comets have been observed for many thousands of years. There are a number of comets that make regular appearances in our galaxy - the most 'famous' of which is Halley's comet. Edmond Halley calculated the orbit and predicted the return of 'his' comet approximately every 75 years. A major feat given the limited technology at the time. Their origin remains a mystery.