Giant impact could have formed the Moon more rapidly, scientists reveal in new simulations AAS_Office
returned by the Apollo astronauts and Earth's mantle. There may also be observable consequences for the thickness of the lunar crust, which would allow us to pin down further the type of collision that took place."
Furthermore, they found that even when a satellite passes so close to the Earth that it might be expected to be torn apart by the"" from Earth's gravity, the satellite actually can not only survive but also be pushed onto a wider orbit, safe from future destruction. Lead researcher of the study, Jacob Kegerreis, said:"This opens up a whole new range of possible starting places for the Moon's evolution. We went into this project not knowing exactly what the outcomes of these very high-resolution simulations would be. So, on top of the big eye-opener that standard resolutions can give you wrong answers, it was extra exciting that the new results could include a tantalizingly Moon-like satellite in orbit.
This immediate-satellite scenario opens up new possibilities for the initial lunar orbit as well as the predicted composition and internal structure of the Moon. The many upcoming lunar missions should reveal new clues about what kind of giant impact led to the Moon, which in turn will tell us about the history of Earth itself.
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