No asteroid impacts needed: Newborn Earth made its own water, study suggests
Contrary to a popular theory that icy comets or asteroids delivered water to a dry newborn Earth, the planet itself may have produced its earliest water supply, a new study suggests.
TroibNews 
Contrary to a popular theory that icy comets or asteroids delivered water to a dry newborn Earth, the planet itself may have produced its earliest water supply, a new study suggests.
