K2-18b is 1,000,000,000 years away by car – but will we find life there?K2-18b is 1,000,000,000 years away by car – but will we find life there?
K2-18b is either covered in warm oceans or oceans of magma. Or something else entirely (Picture: Getty/NASA/Metro) If you thought a long-haul flight to Australia was bad enough, try being