Professor Eirik Flekkøy from PoreLab University of Oslo explains the nature of Oumuamua under Popular Science. Read the article here:
https://www.popsci.com/story/space/oumuamua-not-aliens-maybe-dust/
More articles about Oumuamua available here:
Interesting Engineering: https://interestingengineering.com/scientists-rule-out-aliens-as-the-explanation-for-oumuamua
And in French: https://eost.unistra.fr/actualites/actualite/article/et-maintenant-les-moutons-dans-lespace-de-poussiere/