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Aliens MUST exist beyond Earth, leading scientist insists - 'it's human conceit to think we're alone'
Leading British scientist Dame Maggie Aderin-Pocock says that we must not be alone in the universe and that it is 'human conceit' to think otherwise.
Leading British scientist Dame Maggie Aderin-Pocock says that we must not be alone in the universe and that it is 'human conceit' to think otherwise.
