ELI5: If the Universe is about 13.7 billion years old, and the diameter of the observable universe is 93 billion light years, how can it be that wide if the universe isn't even old enough to let light travel that far that quickly? Submitted by Boxsteam1279 t3_ygrv7x on October 29, 2022 at 7:04 PM in explainlikeimfive No comments 2