Science
Pre-Solar Crystals in Meteorites Reveal Solar System Origins
Microscopic crystals older than the sun, extracted from meteorites, are settling debates about how our solar system formed.
Key Takeaways
- Pre-solar grains survived the solar system's formation intact inside primitive meteorites
- Isotopic fingerprints identify the dead stars that produced each crystal
- Analyses support a complex origin involving multiple supernovae and giant stars
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