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What can a comet from outside our Solar System teach us?
Professional astronomer Alan Fitzsimmons from Queens University Belfast discusses why the amazing discovery of an interstellar comet in our Solar System is so important. The surprising discovery by an amateur astronomer is the second interstellar object spotted in recent years. In 2017 an elongated body known as Oumuamua was found.
(Image: A comet in space. Credit: Science Photo Library.)
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