posted on Jan, 1 2014 @ 02:20 AM
reply to post by Saint Exupery
Thanks for putting things into perspective. Space is very big, and very empty.
Speaking of impacts by large bodies, I think the vast majority of what could have impacted Earth already has. Billions of years have created a fairly
stable arrangement of orbits (such as the main asteroid belt), so most of impacts we will face will come from asteroid collisions producing new chunks
of rock on slightly different orbits, or from comets.
I also remember hearing that the vast majority of large (over 1 km) NEOs have been found and accounted for. I wouldn't want a 50-meter asteroid
landing where I live, but at least it wouldn't be an extinction-level event like from a 10-km asteroid.