Trou Au Natron: The Ghostly Volcanic Face From Space

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Trou Au Natron: The Ghostly Volcanic Face From Space
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Science, Space and Technology News 2023

Past volcanic eruptions and salt deposits from present-day hot springs left this distinctive “face” in northern Chad.Trou au Natron in northern Chad has the look of a ghostly face staring back at you. An astronaut on thecaptured this photograph of the distinctive feature on February 12, 2023.—a type of volcanic crater formed after an explosive eruption or the collapse of the surface into a partially-emptied magma chamber. The “eyes” and “nose” are—steep conical hills built around volcanic vents.

Astronaut photograph, captured from the International Space Station on February 12, 2023, features the deep volcanic pit and soda lake Trou au Natron in northern Chad.—a mixture of sodium carbonate, sodium bicarbonate, sodium chloride, and sodium sulfate. It forms as hot spring water pools on the surface and evaporates, and mineral-rich steam rises from the surface of the geothermally active area.

Astronaut photograph ISS068-E-53507 was acquired on February 12, 2023, with a Nikon D5 digital camera using a focal length of 500 millimeters. The image was provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The image was taken by a member of the Expedition 68 crew. It has been cropped and enhanced to improve contrast, and lens artifacts have been removed.

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