A cold formation of Solar system 4.5BYA

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Ethan Siegel reports on a truly remarkable discovery of 4.5 billion year old nano-grains that might be remnants of a cold formation of the solar system.

https://www.forbes.com/sites/startswithabang/2018/06/11/remnants-of-our-solar-systems-formation-found-in-our-interplanetary-dust/#698453d05747

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