Earth's earliest water may have come from solar wind and space rocks

I note in the article, "That strongly suggests that fine-grained dust, buffeted by the solar wind and drawn into the forming Earth billions of years ago, could be the source of the missing reservoir of the planet's water," Bland said. "

My observation. A very interesting model interpretation for explaining how Earth got its water supply via the solar nebula. I keep in mind that the MMSN is highly variable dust to gas ratios like solids, gas CO, gas H, He, etc. that is reported over the years in different computer models. Example, Evolution of the Solar Nebula. II. Thermal Structure during Nebula Formation,, Nov-1993.

My observation. PDF report, 17 pages. On page 7, some early modeling used 0.0055 Msun for the disk out to about 10 AU. This is 1.831185E+03 or 1831 earth masses in the postulated MMSN disk that evolved the planets. There are many issues needed in defining accurately the MMSN and comparing with observations of disks reported observed around other stars. There are many variables in simulations used to show how a postulated protoplanetary disk around the early Sun, evolved into the planets seen today in our solar system that shows about 447 earth masses from Mercury to Pluto. More variables are needed to show how the Oort Cloud formed from this spinning, accretion disk some 4.5 billion years ago.

Getting all the dust and gas ratios to work and deliver the correct type of water and water supply observed today on Earth remains difficult to show. This includes the giant impact for the Moon using Theia.

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