(In case you don't get the joke/didn't know, the Mars Rover robot, named "Opportunity" just died a few days ago after 15-years service roving around Mars and sernding pictures and, data from samples, and other info back to Earth. It was originally intended to last 90-days. It's actual last message sent back to earth was "My battery is running low and it’s getting dark", which kinda puts a tear in one's eye, to be perfectly honest
)