We've had yet another reasonably-asked question closed as a duplicate of Why does gravity make everything round?
While the question in question has a somewhat reasonable title, it is framed around antigravity. The answer to the title is that gravity does not make everything round, full stop. The question does not focus on midsize objects (i.e., planets and stars) as do more reasonable questions on why some things in the universe are roundish.
That the title of the cited question is wrong (gravity does not make everything round) and that the body is very wrong ("I am studying ways to make an anti-gravity machine (!!)") suggests that the cited question should be the very last choice as the base question. (Base question: A question that asks such a centralizing question that other related questions can be closed as duplicates.)
Very few of the answers to the related questions focus on the potato radius (anything smaller is too small) or the most massive star (anything larger is too large). We finally have a question that asks about planets and stars -- and it was closed as a duplicate. This is sad.