The water in the mantle rock, which could equal the amount of water in the world’s oceans, may be an integral part of sustaining water on the surface, Smyth said. It also implies that the Earth’s oceans likely formed from water stored deep beneath the Earth, rather than from a comet or asteroid, as other scientists have theorized, Smyth said.
“Geophysicists have debated where…Earth’s water came from,” Jacobsen said. “From inside the Earth out of rocks as the planet formed, or did Earth’s water come from things like comets much later on? I think this finding is supporting the idea that oceans and the atmosphere came from (inside the Earth).”
COVID-19 Cases (Useful Breakdown by Country, State, Population)
On Stephen Hawking, Vader and Being More Machine Than Human
Sledding in Spring Break Snow
Ancient Sea Rise Tale Told Accurately for 10,000 Years
‘This is no longer a debate’: Florida sheriff bans deputies, visitors from wearing masks
Space Shuttle Challenger (Destroyed 28 Years Ago Today)