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Abstract <p>Orbital evolution of bodies ejected from the Earth, Moon, Mercury, Mars, and Venus was studied, and the probabilities of collisions of the ejected bodies with planets and the Moon were calculated. The probabilities depended on ejection velocities, ejection angles, and points of ejection. The fraction of bodies collided with the Earth was mainly about 0.2–0.3, 0.1–0.2, 0.04–0.2 for bodies ejected from the Earth, Mars, and Venus, respectively. The probabilities of collisions of bodies ejected from the terrestrial planets with the Moon that moved in its present orbit were about 15–30 times less than the probabilities of their collisions with the Earth. The probabilities of collisions of bodies with planets ejected from the Moon were similar to those ejected from the Earth, but for different ejection velocities.</p>

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Exchange of Ejected Bodies between the Terrestrial Planets and the Moon

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • S. I. Ipatov

摘要

Abstract

Orbital evolution of bodies ejected from the Earth, Moon, Mercury, Mars, and Venus was studied, and the probabilities of collisions of the ejected bodies with planets and the Moon were calculated. The probabilities depended on ejection velocities, ejection angles, and points of ejection. The fraction of bodies collided with the Earth was mainly about 0.2–0.3, 0.1–0.2, 0.04–0.2 for bodies ejected from the Earth, Mars, and Venus, respectively. The probabilities of collisions of bodies ejected from the terrestrial planets with the Moon that moved in its present orbit were about 15–30 times less than the probabilities of their collisions with the Earth. The probabilities of collisions of bodies with planets ejected from the Moon were similar to those ejected from the Earth, but for different ejection velocities.