• Any interplanetary debris that makes it through Earth's atmosphere
  • Thousands fall to Earth every year
  • Contain the oldest and most primitive materials we have been able to study in a lab
    • Almost all between 4.50 and 4.56 billion years old


  • Irons
  • Stones
    • Any silicate or rocky meteorite
  • Stony-Irons
    • Mixtures of stone and metallic iron

Space Meteor Astronomy