These packed enough punch to evaporate any pockets of water and crust-forming rocks, making it impossible for any life to emerge. Aptly enough, that turbulent time period is called the Hadean Eon ...
That's exciting, Tarduno said, because that timeframe represents Earth's very first eon, the Hadean. There are no rocks from the Hadean left on Earth, and the planet's early atmosphere is a mystery.
Hadean Era (4,550-3,850 mya ... producing enough energy and heat to vaporize any water or melt any rock that may be present. Gravity also helps separate heavy elements from lighter ones.