A team of Chinese experts discovered the world's deepest sandstone-type industrial uranium mineralization at a depth of 1,820 meters in the Tarim Basin in Northwest China's Xinjiang Uygur Autonomous Region, and this breakthrough set a new global record for the deepest discovery of sandstone-type industrial uranium mineralization, marking China's leading position globally in the exploration of deep-earth sandstone-type uranium resource and providing new theoretical support and innovative prospecting approaches for global uranium resource exploration, said the China Atomic Energy Authority (CAEA

How the rocks ended up there will be a 'mystery forever'.

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Beyond Neptune, a smaller 'ninth' planet has been identified in the Kuiper Belt.

Nasa will closely monitor the asteroid.