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An unidentified reservoir of comet 81P/Wild 2 chondrules

Proceedings of the National Academy of Sciences, Volume 123, Issue 41, October 2026. SignificanceIt is widely accepted that chondrules were formed in the inner regions of the protoplanetary disk, though the heating mechanism is unknown. Petrography and O isotopes of ~100 silicate fragments from one of the largest aerogel tracks from the ...

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