Looking for water in all the wrong places? Scientists report finding a cloud of water surrounding a giant black hole in a galaxy. It is said to be the oldest and largest amount of water in the universe, holding an amount equal to the mass of at least 100,000 suns. The vapor disk is estimated to be 3,500 light years across (Science, September 10, 2011, p.4).
Although no one has yet found clear evidence of water on Mars, some scientists have concluded that salt water oozing from rocks causes seasonal dark streaks at some locations on that planet. The assumption is that the water freezes below ground and later boils above ground (Id. at p. 8)
Studies in California and Wisconsin reportedly suggest that many urban sanitary sewers are leaking and permit raw sewage to enter into storm sewers that drain into waterbodies that serve as sources of water supply (Id. at p.13).
I am not sure what all this means. But these stories could suggest that if we continue to avoid needed upgrade of sewer infrastructure, and if we want to avoid brine water on Mars, maybe we should seek water in another galaxy.
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