• Question: Has parts of planets ever broke off before and landed on EARTH?

    Asked by Harbio.G??? to Reka on 4 Nov 2016.
    • Photo: Reka Nagy

      Reka Nagy answered on 4 Nov 2016:

      That’s a tough one. Things like asteroids form when bits of rock and metal floating in space run into each other. But the components of these had to have come from somewhere, and this ‘somewhere’ is likely to be the Big Bang – so most pieces of rock floating in space were never parts of planets to begin with.

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