The Cassini space probe is going to dive through Saturn’s rings again on Wednesday, the third of a planned 22 orbits threading that planetary needle as the probe continues a ballistic death-drop inward. And like the first ring-crossing two weeks ago, this one required a bit of complicated piloting. Remote-controlling a robot spaceship from 750 million miles away ain’t like dusting crops, as Han Solo might say. (RIP.) (Spoilers.