Study finds hydrated near-Earth asteroids are more common than we would think from the pieces that fall to Earth, estimating there are between 400 and 1200 billion kilograms (440 to 1.3 billion U.S. tons) of water that could be extracted from the minerals in these asteroids

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Study finds hydrated near-Earth asteroids are more common than we would think from the pieces that fall to Earth, estimating there are between 400 and 1200 billion kilograms (440 to 1.3 billion U.S. tons) of water that could be extracted from the minerals in these asteroids