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Discovering Hale Bopp
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Hale Bopp is one of the most widely observed comets of the 20th century. Its discovery in 1995 resulted in huge advances in science. Russell Crewe spoke to astronomer Dr Alan Hale who discovered the comet alongside Tom Bopp. This is a Made in Manchester production for the BBC World Service.
(Photo: Hale Bopp Comet in the night sky. Credit: Getty Images)
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