Just how old is H2O? A fascinating new study suggests that some of the water molecules we drink and bathe in are way old — as in more than 4.6 billion years old.
That’s older than the solar system itself.
“Our findings show that a significant fraction of our solar system’s water, the most-fundamental ingredient to fostering life, is older than the sun,” study co-author Dr. Conel Alexander, a scientist at the Carnegie Institute for Science in Washington, D.C., said in a written statement, “which indicates that abundant, organic-rich interstellar ices should probably be found in all young planetary systems.” Read more
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