How big is outer space?
Tricky. “Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s but that’s just peanuts to space” – Douglas Adams The bit we can see – i.e. all the way back to the last scattering surface is (now) about 156 billion light years wide. ( http://www.space.com/…/…onday_040524.html ) The majority of cosmologists agree that the bit we can see is just part of an infinite universe.