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A team of physicists who can now count themselves as astronomers announced Thursday that they had heard and recorded the sound of two black holes colliding 1 billion light-years away, a fleeting chirp that fulfilled the last prophecy of Albert Einsteins general theory of relativity.
NASAs mantra for finding alien life has long been to follow the water, the one ingredient essential to our own biochemistry. On Wednesday, NASA is scheduled to sample the most available water out there, when the Cassini spacecraft dives through an icy spray erupting from the little Saturnian moon Enceladus.