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Evidence of coupled variations in the chemical and isotopic compositions of the source material for meteorites.
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Residual coupling of chemical and isotopic heterogeneities across planetary distances in the solar system today.
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The mass-fractionation relationship seen across isotopes of elements in the planetary system, in the solar wind, and in solar
flares.
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Linkage of short-lived radioactivities with isotopic anomalies and with physical properties of their host grains, as expected
for early condensate of fresh stellar debris.
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Temporal and spatial distributions of short-live nuclides and their decay products.
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Mirror-image (+ and −) isotopic anomalies in meteorite grains that sum to “normal” isotopic ratios, as expected of unmixed
products of the same nuclear reactions that produced our bulk elements.
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The lac supporting evidence for “presolar” grains or nearby stars that injectedexotic material into the early solar nebula.
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