Astronaut Thomas Pesquet captured from ISS Waw an Namus of Libya.

Credit: Thomas Pesquet, ESA, NASA

Waw an Namus is a volcanic field, cone and caldera in the southern Fezzan region of southern Libya. It is in the near-geographic center of the Sahara Desert. The inside of the caldera houses an oasis of rich foliage and three small salt lakes of variable color which are the reason for the volcano’s name. A volcanic field of dark basaltic tephra flow extends 10–20km around the caldera.

The local scenery on the ground is as follows.

Credit: Wikipedia

Reference: Thomas Pesquet’s Tweet
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