4 Quotes by William Bottke

We created something like a traffic map, like the Los Angeles Freeway system.

This means that certain iron meteorites may tell us what the precursor material for the primordial Earth was like. There's also the possibility that larger versions of this material may still be hiding among the asteroids. The hunt for them is on.

The odds of one hitting us tomorrow are very small, but they're not zero. It behooves us to go out and find these objects.

The entire Earth would be in bake mode.