what was the size of the smallest rocket that has ever been sent in to space

Question: what was the size of the smallest rocket that has ever been sent in to space
- Keywords:
  rocket,
  size
Asked by liz to Andrea, Charlie 🚀, Col Op, Kirsty, Vinita on 17 Jun 2016.
- Andrea Boyd answered on 17 Jun 2016:
  
  I believe it was the Russian Shtil – a converted intercontinental ballistic orbital launch vehicle. It wasn’t even 15m tall but it was able to be used after the modifications to put satellites in space.

Question: what was the size of the smallest rocket that has ever been sent in to space