A study adds strong evidence to the hypothesis that the deadly rock came from a family of objects that originally formed well beyond the orbit of the planet Jupiter.
  • grue@lemmy.worldEnglish
    1·
    2 months ago

    I wonder why siliceous asteroids are closer to the sun and carbonaceous ones are further away.

    Gravitational stratification, maybe? (Analogous to why lighter fluids float on heavier ones, even though asteroids aren’t touching each other?)