Iron meteorite evidence for early formation and catastrophic disruption of protoplanets

  title={Iron meteorite evidence for early formation and catastrophic disruption of protoplanets},
  author={Jijin Yang and Joseph I. Goldstein and Edward R. D. Scott},
In our Solar System, the planets formed by collisional growth from smaller bodies. Planetesimals collided to form Moon-to-Mars-sized protoplanets in the inner Solar System in 0.1–1 Myr, and these collided more energetically to form planets. Insights into the timing and nature of collisions during planetary accretion can be gained from meteorite studies. In particular, iron meteorites offer the best constraints on early stages of planetary accretion because most are remnants of the oldest bodies… Expand
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