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The large mound structures that dominate one of the lobes of the Kuiper belt object Arrokoth are similar enough to suggest a common origin. Credit: Southwest Research Institute.
“Similarities including in sizes and other properties of Arrokoth’s mound structures suggest new insights into its formation,” said Alan Stern, the Principal Investigator of the New Horizons mission, presenting the findings this week at the American Astronomical Society’s 55th Annual Division for Planetary Sciences meeting in San Antonio.
Arrokoth — which had an original designation of 2014 MU69 — is the most distant and most primitive object ever explored by a spacecraft. It was discovered in 2014 by NASA’s New Horizons science team, using the Hubble Space Telescope.snapping pictures showing the strangely shaped object. It wasn’t until well after the flyby that scientists realized the two lobes on Arrokoth were not round, but flattened like a pancake.
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Large mound structures on Kuiper belt object Arrokoth may have common originA new study posits that the large, approximately 5-kilometer-long mounds that dominate the appearance of the larger lobe of the pristine Kuiper Belt object Arrokoth are similar enough to suggest a common origin. The study suggests that these “building blocks” could guide further work on planetesimal formational models.
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Arrokoth's large mound structures may have the same originUsing NASA’s New Horizons data, scientists have gained a new understanding of the peculiar structure of Arrokoth (2014 MU69).
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