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The uncertainty of science: After more than 2 1/2 years on the lunar surface China’s Chang’e 3 lunar lander has detected no water at its landing site.
This result, while not in direct conflict with the orbital data from India’s Chandrayaan-1, suggests that the question of water on the Moon is a very complex one. Chandrayaan-1 detected evidence that suggested their might be deposits of water in certain surface regions, locked up in the regolith. Chang’e 3 found no water at its specific location. The two results do not have to conflict, but the latter does raise the uncertainty of Chandrayaan-1’s detection.