https://en.wikipedia.org/wiki/Richat_Structure
https://makerworld.com/en/models/171065#profileId-187782
https://makerworld.com/en/models/171073#profileId-187795
https://makerworld.com/en/models/171080#profileId-187805
https://makerworld.com/en/models/171088#profileId-264965
https://makerworld.com/en/models/171090#profileId-187816
The cover fits to the EU and US version of the IKEA Mörkrädd.
The original photo was taken from the ISS and given to the public domain bei NASA.
https://makerworld.com/en/@yahbluez/collections/509009
If you like the work, click on like and follow me.