How do the close-up, long-duration studies afforded by Mars orbiters and rovers contrast with encounters at the outer solar system boundary?

Answer

They cannot be matched by the fleeting glimpses captured at the outer solar system boundary

The close-up, long-duration study capability on Mars cannot be matched by the fleeting glimpses captured during flybys of outer planets like Neptune or Uranus.

How do the close-up, long-duration studies afforded by Mars orbiters and rovers contrast with encounters at the outer solar system boundary?
Spaceexplorationplanetsolar system