Keith Cooper is a freelance science journalist and editor in the United Kingdom, and has a degree in physics and astrophysics from the University of Manchester.
careening through space until they settled into the orbits we know today, occurred between 60 and 100 million years after the birth of theWhat happened when the moon 'turned itself inside out' billions of years ago?, scientists know the aforementioned carnage occurred early in the history of the solar system. Still, there are some puzzles yet to be solved when it comes to how exactly everything went down.
Scientists call the theory behind this orbital instability the"Nice Model," after the French city that houses the Côte d’Azur Observatory, where scientists originally developed the idea. Initially, those scientists thought this instability occurred between 500 and 800 million years after the, in which the inner planets would have been peppered by comets dislodged from their orbits thanks to the migrating gas giants.
Something should have scattered the progenitor of the Athor family into the asteroid belt, and that"something," the team says, must have been the instability that led Jupiter to go wandering. EL chondrites thus make the perfect chronometers for this event because they should contain a clear record of what must have happened.
"Avdellidou specifically finds that the Nice Model itself — the giant planet's orbits going wild for a short 10 or 20 million year period — is the best and maybe only time to send asteroids into the region of this specific Athor asteroid family," said Walsh.
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