NASA finds key building block for life in a moon of Saturn
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The long hunt for extraterrestrials just got a big boost.Scientists have discovered that phosphorus, a key building block of life, lies in the ocean beneath the icy surface of Saturn's moon Enceladus. The finding was based on a review of data collected by NASA's Cassini probe, and was published Wednesday in the prestigious journal Nature. Cassini started exploring Saturn and its rings and moons in 2004, before burning up in the gas giant's atmosphere when its mission ended in 2017."This is a stunning discovery for astrobiology," said Christopher Glein of the Southwest Research Institute, one of the paper's co-authors, adding: "We have found abundant phosphorus in plume ice samples spraying out of the subsurface ocean."Geysers on Enceladus' south pole spew icy particles through cr...