Philae, the European Space Agency’s comet lander, made history and melted hearts when it touched down on Comet 67P/Churyumov-Gerasimenko as part of the Rosetta mission in 2014. It didn’t just bring us the closest we’d ever come to a comet; it landed right on it.
In all likelihood, Philae is now at permanent rest. Nothing has been heard from the lander since July last year, and last-ditch attempts to communicate with it earlier this month yielded no response. When you’re a comet lander, inability to communicate is pretty much as close as you get to death.