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HiRISE 3D: A Spooky Crater
There are lots of secondary craters in this area that are well preserved, yet the main crater is extremely shallow, probably due to relaxation in ice-rich ground .
https://www.uahirise.org/anaglyph/ESP_042659_1435_ESP_033916_1435_RED
NASA/JPL-Caltech/UArizona
@HiRISE That looks suspiciously like D.R. from D.R. & Quinch, an Alan Moore/Alan Davis comic about two interstellar juvenile delinquents. Among their antics is graffiti-ing planets.
@HiRISE "...relaxation in ice-rich ground."
Perhaps, due to its melting?
Will take "scientists" some time to reach this conclusion.
@Kittiekatt53 Contraction and expansion of ground ice is the hypothesis.
Not sure why the word scientists is put in quotes, but, okay.
@HiRISE Hmmm