Comets are thought to come from the Kuiper Belt beyond Pluto and the Oort Cloud at the very edge of our solar system. Patrick Moore debates the mysterious belts and the comets that escape from them. Show more
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Comets are thought to come from the Kuiper Belt beyond Pluto and the Oort Cloud at the very edge of our solar system. Patrick Moore debates the mysterious belts and the comets that escape from them. Show more
BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.
