Dust-rich outflows of evolved stars (IMAGE)
Caption
Dust-rich outflows of evolved stars similar to the pictured Egg Nebula are plausible sources of the large presolar silicon carbide grains found in meteorites like Murchison. Inset: SiC grain with ~8 micrometers in its longest dimension.
Credit
Image courtesy ESA/Hubble and NASA. Inset courtesy of Janaína N. Ávila.
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