Monday, September 17, 2018
Mars!
https://www.zooniverse.org/projects/mschwamb/planet-four-ridges/collections/roger-c/favorites-mschwamb-planet-four-ridges
https://talk.planetfour.org/#/collections/CPFS0009wk
https://www.zooniverse.org/projects/mschwamb/planet-four-terrains/collections/roger-c/favorites-mschwamb-planet-four-terrains
Monday, September 3, 2018
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