Cassini will take five victory laps before plunging into Saturn

While that’s still far away from the planet’s surface, NASA expects the atmosphere there to be dense enough to require the use of the probe’s mini-rocket thrusters. Cassini’s ground team believe they can last the whole five passes, since they have experience navigating that kind of atmosphere from the probe’s close flybys of Titan. In case the atmosphere turns out denser than they expect, though