Seven years ago today, the Cassini spacecraft made the ultimate sacrifice by diving into Saturn’s atmosphere for its daring final mission. The probe had been in orbit of Saturn for 13 years and had studied the ringed world and its many moons extensively, but it was low on fuel used to adjust its course. To protect the Saturn’s moons from a potential contamination of Earthly organisms, NASA directed Cassini to dive into Saturn for its final task before the mission came to an end. Cassini fought t