This article discusses the source of water on earth.
one choice: seven achondrite objects recently arrived on earth from five (or more) planetismals that collided and formed the planets of the solar system.
another choice: older meteorites that formed prior to the achondrite objects that turned out to be the driest extraterrestrial materials ever measured
yet another choice: carbonaceous chondrites that can contain water up to 20% of meteorite mass.
They didn’t discuss ice blocks resulting from Tiamat being smashed and losing much of its water to space which then landed on earth which was likely the nearest gravitational body to attract it.
Sigh.
https://phys.org/news/2023-03-earth-meteorites-scientists.html
Thanks!
John Keebaugh