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?

Question

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?

In: 5624

Answer 1

Light years are a measure of distance, not time. I think that’s where the confusion comes from.

Years and light years are on two completely different scales. One measures time and the other measures distance.