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astro-ph.EP2026
Tianwen-2 target asteroid (469219) Kamo'oalewa probably develops an Itokawa-compositional but ultra-highly space-weathered surface
Pengfei Zhang, Guozheng Zhang, Zichen Wei +45
China's Tianwen-2 mission plans to return samples from a small, rapidly spinning Earth quasi-satellite (469219) Kamo'oalewa. Previous studies linked Kamo'oalewa to lunar compositio…
astro-ph.EP2022
Ancient and recent collisions revealed by phosphate minerals in the Chelyabinsk meteorite
Craig R. Walton, Oliver Shorttle, Sen Hu +8
The collision history of asteroids is an important archive of inner Solar System evolution. Evidence for these collisions is brought to Earth by meteorites, which can preserve impa…
astro-ph.EP2021
Mars: new insights and unresolved questions
Hitesh G. Changela, Elias Chatzitheodoridis, Andre Antunes +33
Mars exploration motivates the search for extraterrestrial life, the development of space technologies, and the design of human missions and habitations. Here we seek new insights…