3 BIL YRS AGO MASSIVE METEORITE HIT EARTH - BOILED OCEANS, CREATED MASSIVE AIR TEMPS, ETC

Three billion years ago, when earth had a few small continents and life was single cell microorganisms, a massive meteorite hit earth. The impact was so grand, it generated massive amounts of heat that boiled the oceans causing up to tens of meters of water to evaporate, and increased air temperatures by up to 100C. Statistically, it can and probably will happen again.