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    NASA’s Cassini Spacecraft Begins ‘Grand Finale’

    Its mission is coming to an end. After 20 years in space and 13 years in Saturn’s system, NASA’s intrepid Cassini spacecraft will begin its grand finale Sunday before plummeting into the planet on Sept. 15. Since its 1997 launch, the craft has beamed a steady supply of detailed data and imagery from the ringed planet’s system some 870 million miles away, providing information for more than 3,000 scientific reports. Cassini’s fans and 1.2 million Twitter followers can now watch its swan song of 22 spectacular dives through Saturn’s rings.

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