Primordial Origins of (Some) of Earth’s Water Posted From Centauri Dreams

Viv Drewa - The Owl Lady

Posted: 29 Sep 2014 09:55 AM PDT With one interstellar conference in the books for 2014, I’ll be headed next for the Tennessee Valley Interstellar Workshop, whose upcoming gathering will be held in Oak Ridge this November. Last week’s coverage of the 100 Year Starship Symposium in Houston has allowed several interesting stories to back up in the queue, and I’ll spend the next few days going over some of the latest findings, starting with the discovery that a large fraction of the water in Earth’s oceans may be substantially older than we think. The results make a strong case for water as a common ingredient in planet formation no matter where the planet forms or around what kind of star. Ilsedore Cleeves (University of Michigan) is lead author on the new paper in Science that argues the case. What Cleeves and colleagues have found is that up to…

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