You can calculate asteroids and comets and if they are to hit Earth, so what do you do if you find that a comet or

Question: You can calculate asteroids and comets and if they are to hit Earth, so what do you do if you find that a comet or scientist is headed for Earth?
- Keywords:
  end of the world,
  space,
  topical
Asked by kristjana to Alan on 12 Mar 2014.
- Alan Fitzsimmons answered on 12 Mar 2014:
  
  We would calculate when it would hit us and where. If its a small one we wouldn’t worry, we would let it burn up in the atmosphere. If it is a large one we would have to launch a space mission to divert it onto a safe path.

Question: You can calculate asteroids and comets and if they are to hit Earth, so what do you do if you find that a comet or scientist is headed for Earth?