https://www.wired.com/story/oumuamua-was-neither-comet-nor-asteroid-so-what-was-it/?fbclid=IwAR2uLTHELbvCGGtnZNYxuxBJKvuCg4B71cNOVwaAb_lCaFa1Kw2au-xrjcs&mbid=social_facebook_aud_dev_kw_paid_science_interstellar-comet-oumuamua-might-not-actually-be-a-comet--quanta-magazine