On the surface, the catamaran USV operated in tandem with the Zhudian No. 15, initiating China’s first mother-daughter vessel collaborative survey model. The USV collected high-resolution data and ...
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Trio of 'black mesas' leftover from Paleozoic era spawn rare sand dunes in the Sahara — Earth from space
A 2023 astronaut photo shows three dark hills, or mesas, towering above part of the Sahara desert in southern Mauritania. The ...
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