It seems unlikely we’ll hear much more about Spirit now until it’s covered with enough dust that it cannot recharge via solar power and goes silent forever – or at least until there’s a stiff breeze (as my beloved pointed out, this is not unlike what happens to Wall-E). But it’s striking how the language NASA uses is very…well, very Yes Minister. Spirit isn’t “dead” or “stuck”, it’s “no longer a fully mobile robot”; it’s not “retired”, it’s “entered a new phase”. I kept expecting to hear that it was “very happy with its brave decision” and that we can expect more reports from Spirit “in the fullness of time”. Or even: “Spirit’s close colleague, Opportunity, has not been available for comment.”

But for the definitive last word on the end of Spirit’s active life, I must pass you on to that ever excellent web comic XKCD; their piece on the subject is simply titled “Spirit“.