How big is a proton? We may finally have the answer to this puzzle by Translucidmind | Sep 13, 2019 | Physics https://www.newscientist.com/article/2215478-how-big-is-a-proton-we-may-finally-have-the-answer-to-this-puzzle/ https://www.newscientist.com/article/2215478-how-big-is-a-proton-we-may-finally-have-the-answer-to-this-puzzle/