[vikingerik]

Cassini lasted 20 years (1997-2017) and was functioning fine all along. It was intentionally ended, but there had been talk of sending it on another 20 year cruise to Uranus.

New Horizons is similar, now at 18 years since launch and still counting.

They're not quite 50 yet, but there's no reason to think either couldn't make it that long.

[basementcat]

CNSA is planning to launch a pair of spacecraft next year that will flyby Jupiter on trajectories reminiscent of Voyagers 1 and 2. https://en.m.wikipedia.org/wiki/Interstellar_Express