Question: hi armin when do you think a comit will hit earth

Armin Shams answered on 12 Nov 2019:

Hi, not my field but i assume you mean the dangerous ones, have read that stony asteroids that impact sedimentary rock and create a crater can happen every several thousand years, with the power of a strong atomic bomb. Every 100 thousand years, the impact can be a global disaster for the whole world (statistics from before, not 100% certain timing).