Cosmochemistry
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Cosmochemistry or chemical cosmology is the study of the chemical composition of matter in the universe and the processes that led to those compositions. This is done primarily through the study of th
Meteorites are often studied as part of cosmochemistry.
Presolar grains
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Presolar grains are any solid material formed before the coalescence of the Sun, the star at the center of the Solar System. This material is most frequently encountered as tiny grains incorporated wh
Cosmochemistry
…focus of cosmochemical investigations. The most primitive meteorites also contain a small amount of material (< 0.1%) which is now recognized to be presolar grains that are older than the Solar System itself, and which are derived directly from the remnants of the individual supernovae that supplied the dust from…
Boeing Delta II rocket carrying the Stardust spacecraft waiting for launch. Stardust had a close encounter with the comet Wild 2 in January 2004 and also collected interstellar dust containing presolar interstellar grains.
Vial of suspended presolar grains from the Orgueil meteorite.