Supernova Olivine from Cometary Dust

@article{Messenger2005SupernovaOF,
  title={Supernova Olivine from Cometary Dust},
  author={Scott R. Messenger and Lindsay P. Keller and Dante S. Lauretta},
  journal={Science},
  year={2005},
  volume={309},
  pages={737 - 741}
}
An interplanetary dust particle contains a submicrometer crystalline silicate aggregate of probable supernova origin. The grain has a pronounced enrichment in 18O/16O (13 times the solar value) and depletions in 17O/16O (one-third solar) and 29Si/28Si (<0.8 times solar), indicative of formation from a type II supernova. The aggregate contains olivine (forsterite 83) grains <100 nanometers in size, with microstructures that are consistent with minimal thermal alteration. This unusually iron-rich… 
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