NASA's Cassini spacecraft will meet its fiery end in Saturn's atmosphere on Friday

After 13 years of zooming around Saturn and its many moons, NASA's Cassini spacecraft has less than four days left at the planetary system before the probe is lost forever. Early Friday morning, Cassini will dive into Saturn's atmosphere, eventually melting and breaking apart. The death plunge will put an end to the spacecraft's mission, one that has taught us more about Saturn and its moons than we ever thought possible. This final step has long been planned by the Cassini mission team, and it'...