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Analyzing avalanches on asteroid Vesta offers new method for understanding regolith processes

Analyzing avalanches on asteroid Vesta offers new method for understanding regolith processes
Phys.org Monday 29 June 2026, 19:40 UTC 1 min read
Key Points

A study conducted at the Institut de Physique du Globe de Paris uses images from NASA's Dawn mission and a Bayesian inversion of the Hapke photometric model to analyze avalanches and ejecta deposits on the asteroid Vesta. The results show that the brightest deposits correspond to the most recently mobilized surfaces, offering a new way to track the evolution of regolith on airless bodies. The paper is published in Astronomy & Astrophysics.

A study conducted at the Institut de Physique du Globe de Paris uses images from NASA's Dawn mission and a Bayesian inversion of the Hapke photometric model to analyze avalanches and ejecta deposits on the asteroid Vesta. The results show that the brightest deposits correspond to the most recently mobilized surfaces, offering a new way to track the evolution of regolith on airless bodies. The paper is published in Astronomy & Astrophysics.
Vesta (ORG) the Institut de Physique du Globe de Paris (ORG) NASA (ORG) Dawn (EVENT) Bayesian (ORG) Hapke (ORG) Astronomy & Astrophysics (ORG)
Originally published by Phys.org Read original →

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