New modeling indicates the main belt asteroid (52246) Donaldjohanson may have formed about 150 million years ago when a larger parent asteroid broke apart; its orbit and spin properties have undergone significant evolution since. When NASA's Lucy spacecraft flies by this approximately three-mile-wide space rock on April 20, 2025, the data collected could provide independent insights on such processes based on its shape, surface geology and cratering history.
from Top Technology News -- ScienceDaily https://ift.tt/1jBeMPJ
Monday, 17 March 2025
Age of upcoming asteroid flyby target
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