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Evidence of a 4.33 billion year age for the Moon's South Pole-Aitken basin

Space Sciences

Evidence of a 4.33 billion year age for the Moon's South Pole-Aitken basin

K. H. Joy, N. Wang, et al.

Uncover the secrets of the Moon's South Pole-Aitken basin! Research by K. H. Joy and colleagues reveals a surprising formation age of 4.32–4.33 billion years, challenging our understanding of lunar bombardment and suggesting a more complex early history of the Moon.

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Playback language: English
Abstract
Determining the age of the Moon's South Pole-Aitken (SPA) basin is crucial for understanding early Solar System bombardment. Analysis of the lunar meteorite Northwest Africa 2995, consistent with SPA basin lithologies, reveals a formation age of ~4.32–4.33 billion years old. This predates the main lunar basin-forming period by ~120 million years, challenging existing models of lunar bombardment and implying that earlier basins were erased by the SPA impact or other geological processes.
Publisher
Nature Astronomy
Published On
Oct 16, 2024
Authors
K. H. Joy, N. Wang, J. F. Snape, A. Goodwin, J. F. Pernet-Fisher, M. J. Whitehouse, Y. Liu, Y. T. Lin, J. R. Darling, P. Tar, R. Tartèse
Tags
Moon
South Pole-Aitken basin
lunar meteorite
formation age
lunar bombardment
geological processes

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