I just watched an Amazon Original documentary that I found pretty amazing. It’s called “Good Night OPPY” and is about the Mars rover “Opportunity.” Both “Opportunity” and its sister rover “Spirit” were sent by NASA to Mars in 2003 and were expected to live to 90 days. “Spirit” remained operational for more than six Earth years and “Opportunity” remained operational for nearly 15 Earth years. If you have an opportunity to see this documentary, I think you'll enjoy it.
Near the end of the documentary is the following narrative from rover operators as well as the documentary narrator:
“As a parent, I’m proud. We rewrote the history books. But as a human being, I’m really sad. Because she was a friend.
The whole project was bound together by that feeling of love. You’re loving the rover, and you’re loving the people who you built it with. You’re loving the people who you operated it with and tended it with you so lovingly for so many years.
Narrator: Sol 5,352. 15 years into the mission. Since the very first day, when she rolled herself into a hole in one at Eagle Crater, Opportunity has affectionately been called the lucky rover. And now, after receiving 13,744 command files and lasting 5,262 sols past her original retirement age of 90 sols, Opportunity’s incredible journey has come to its end. Good night, Opportunity. Well done.”