Voyager 1

https://www.livescience.com/space/space-exploration/nasa-shuts-off-another-voyager-1-instrument-as-humanitys-most-distant-spacecraft-prepares-for-risky-big-bang-maneuver-to-save-power

From the Article:  After nearly half a century in space, the Voyager 1 spacecraft just shut down one of its last remaining science instruments in a desperate attempt to preserve power. NASA's decision to turn off the instrument comes just ahead of a last-ditch "Big Bang" moment that mission managers hope will give the two Voyager probes an extra boost of life later this summer.

Wow! It is still a valuable effort after 50 years. I cannot imagine the information it has provided to all of us over time. To those against things like NASA, this should change your mind.