A 2019 astronaut photo shows off ancient lava flows that once oozed down the jet-black slopes of the Toussidé volcano in northwestern Chad. An intriguing volcanic "skull" also lurks in the aerial image.

Source: [Live Science](https://www.livescience.com/planet-earth/volcanoes/shadowy-tendrils-of-ancient-lava-have-scarred-a-dark-volcano-next-to-a-skull-in-the-sahara-earth-from-space)

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