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Differences between the impact regimes of the terrestrial planets: Implications for primordial D:H ratios

Mousis, O.; Horner, J.; Petit, J. -M. +1 more

It is often assumed that the terrestrial worlds have experienced identical impact regimes over the course of their formation and evolution, and, as a result, would have started life with identical volatile budgets. In this work, through illustrative dynamical simulations of the impact flux on Venus, the Earth, and Mars, we show that these planets …