[Hot Tabasco]

The bigger issue is if something impacts the magnetosphere,

Would that rip the fillings out of our teeth?

[Vermont Lt]

If only that were the case.

If an object such as a comet or large enough asteroid came close enough to the planet (not hitting it, but “brushing it”) we could lose enough atmosphere, and it could mess with the magnetic fields enough to fail to deflect a CME. It would be an extinction level thing.