how big is the milky way??!!!! – Extreme Size Zone

Question: how big is the milky way??!!!!
- Keywords:
  milky way,
  size,
  space
Asked by eshanip1017 to Alan, Francesca, Nick on 20 Mar 2014.
- Alan Fitzsimmons answered on 20 Mar 2014:
  
  The Mily Way is about 100,000 light years across. That’s 900,000,000,000,000,000 km!
- Francesca Day answered on 20 Mar 2014:
  
  It’s hard to define exactly where the Milky Way ends, but as Alan said, it’s about 900 million billion km across!
- Nick Wright answered on 20 Mar 2014:
  
  The Milky Way is huge! Its about a billion billion km across, which is a really hard number to think about, so its hard to comprehend sometimes. Its the same as about 150,000 light years, which means if we shined a light towards the other side of the galaxy it would take 150,000 years for the light to get there! Imagine that!

Question: how big is the milky way??!!!!