How To Save Earth From Killer Asteroids

How exactly do you divert the course of an asteroid which is going to hit Earth? I talked about the gravity tractor concept last week and I felt I needed to go into more detail because a number of people like to point out the problems without thinking about the solutions.

If you want to help 'save the world' from the impact hazard I suggest checking out the B612 Foundation https://b612foundation.org/

Here's my previous video on why 'nuking an asteroid into space dust' is a bad idea:
https://www.youtube.com/watch?v=aCjrYPc-4nE

Видео How To Save Earth From Killer Asteroids канала Scott Manley