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Waspie_Dwarf

Giant impact on the Moon

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Waspie_Dwarf

Giant impact caused difference between Moon’s hemispheres

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WASHINGTON—The stark difference between the Moon’s heavily-cratered farside and the lower-lying open basins of the Earth-facing nearside has puzzled scientists for decades.

Now, new evidence about the Moon’s crust suggests the differences were caused by a wayward dwarf planet colliding with the Moon in the early history of the solar system. A report on the new research has been published in AGU’s Journal of Geophysical Research: Planets.

arrow3.gif  Read More: American Geophysical Union

 

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Eldorado

"In the new study, scientists fed measurements from the GRAIL mission into a computer and ran 360 simulations of plausible cosmic collisions that could have caused the lunar asymmetry.

"By "crashing" various-size objects at different speeds into the moon, they found that the most likely scenario to yield the weird lunar texture would have been a collision with an object that would have been about 480 miles (780 kilometers) in diameter."

Full report at Live Science: https://www.livescience.com/65527-moon-asymmetry-collision-dwarf-planet.html

The research article at AGU 100: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JE005826

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