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`Oumuamua is the first interstellar object we鈥檝e detected travelling through our solar system. It has been travelling between the stars for many millions of years before coming our way, as听astrophysicist will explain at New Scientist Live.

Bannister has been involved in the discovery of more than 800 minor planets that orbit beyond Neptune and she has an asteroid named after her.

is the world鈥檚 greatest science festival and runs from 10 to 13 October at ExCel London. You can .