In the 22 century, space is still pretty big. Jupiter can be reached by resupplying in the Asteroid Belt, but Saturn remains a distant world, far out of range for most ships. Even when Jupiter is lined up with it, there is still 1.2 billion kilometers of empty space to cross. That is where the Saturn Carriers come in - 4 kilometer long spaceships designed to carry goods, passengers, and even entire ships directly to Jupiter, Saturn, and back again. They are practically mobile cities - flying O'Neil cylinders with a permanent population in addition to it's crew. A Saturn Carrier will arrive in Cronian orbit typically only once every year, making it the most isolated place in the solar system.
Trying out the 2D style spaceship pictures I've seen people doing.