Meet UY Scuti, the Smallester star in the universe/galaxy. Personality: usually rude Likes: Destroying planets dislikes: Betelgeuse, exploding kidding Bfdifan2013Rises: UY Scuti is the smallest star, it's actually 0.007% the radius of the sun and not 1700. Stephenson 2-18 is the biggest star, at 0.05% the radius of the sun: got that
Okay, Molecular Level.