Say what?
:’) And yet...
“during the 200-million-year period of the late heavy bombardment, Earth suffered over 22,000 impact craters larger than 20 km, about 40 impact basins larger than 1,000 km, and several continent-sized, 5,000-km basins.”
http://www.daviddarling.info/encyclopedia/L/late_heavy_bombardment.html