Mastodawn

V Martín Sep 12, 2025

A recent new hypothesis for #WundaCrater: Occator-like salt deposits. Also positing an #AhunaMons analogue on Oberon.

Scully, @SpaceWhaleRider et al: "Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon That Orbit Uranus"
https://iopscience.iop.org/article/10.3847/PSJ/adec97

V Martín Nov 19, 2024

If you, like me, were new to #WundaCrater in the latest #Umbriel posts by @PhilStooke :

https://mastodon.social/@PhilStooke/113497187659806118
https://mastodon.social/@PhilStooke/113508602088708929
https://mastodon.social/@PhilStooke/113508628701204038

here's a 2017 paper on how it's most likely a cold trap for CO2 (Uranus' moons are also ~90° rotated so the equator gets the least Sun)

Sori et al: "A Wunda-full world? Carbon dioxide ice deposits on Umbriel and
other Uranian moons"
http://lunar.earth.northwestern.edu/courses/450/umbriel.pdf