How big is the universe and how old?

1 Answer
Oct 11, 2017

46.5 billion light-years big
13.8 billion light-years old


According to latest estimates, the universe is approximately 13.8 billion years old.

The distance to the edge of the observable universe is about 46.5 billion light-years.

This is because the universe is constantly expanding. Although the light has travelled for only 13.8 billion years, the distance from us to the point it originated is 46 billion light-years, currently.