<ul><li>More than 1 million 'interstellar objects' the size of the Statue of Liberty could be drifting unseen in the outer solar system.</li><li>Scientists have only detected two confirmed interstellar objects in the solar system: 'Oumuamua in 2017 and Comet Borisov in 2019.</li><li>Based on simulations, it is predicted that there are currently around 1 million 'macroscopic objects' from Alpha Centauri in the solar system.</li><li>These interstellar objects are likely residing in the Oort Cloud and are almost impossible to spot.</li></ul>

1 million 'interstellar objects' — each larger than the Statue of Liberty — may lurk in the outer solar system

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