We're never going to see the stuff outside, but by going to the South Pole and spending three years looking at the detailed structure of the night sky, we can figure out that we're probably in a universe that looks kind of like that.
Nous ne verrons jamais les choses en dehors, mais en allant 3 ans au Pôle Sud, observant la minutieuse structure de la nuit étoilée, on peut comprendre que nous sommes probablement dans un univers qui ressemble à ça.