NASA's Cassini just began its deadly descent into Saturn, and the clock is ticking

NASA's incredibly successful Cassini probe has delivered a wealth of information about Saturn and its many moons during its 13+ years hanging around the planet, but all good things must come to an end. An end is exactly what Cassini will experience in September when it burns up in Saturn's atmosphere, and the craft just began the last phase of its dramatic series of dives that will bring it closer to the planet than it's ever been before. Earlier this year, Cassini embarked on what NASA calls it...