Assertion: meteoroid's impact | /r/HasProperty | found with öst
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Source sentences:
text: Schmitz and his colleagues measured how long the newfound meteorite had been exposed to cosmic rays, a dating technique called cosmic ray exposure, and they found that the impacts that gave birth to the meteorite, now named Österplana, or Öst 65, and to the L-type chondrites found with Öst 65 both occurred about 1 million years before all these meteorites crashed on Earth.