The Blue Eye of Africa
American Astronauts, McDivitt and White, of the Gemini IV mission took the first picture of the Richat Structure from space. When they first spotted the massive eye in the Saharan sand, they believed it to be an impact crater. It turned out to be a geological formation—though exactly how it formed was highly debated.
The mysterious Eye of the Sahara has become a landmark for spacefaring shuttle crews since the Gemini IV astronauts first saw it from space back in 1965.
Photo by Yonas Kidane
https://flickr.com/photos/187916110@N02/50466559382
Colour exaggerated render of Richat Structure, also known as the Eye of the Sahara, in Mauritania based on Sentinel-2 satellite image data taken on October 8, 2020, licensed under the terms of the cc-by-sa-2.0.
https://thedebrief.org/the-mysterious-eye-of-the-sahara-is-one-of-earths-strangest-marvels/