It's disappointing that this is the most upvoted comment in this thread. The mission was a success and will enable the scientists to understand much more about the whole thing. Plus, the orbiter will continue to track the comet and there is a chance the lander will come back from hibernation mode once there is more sunlight available.

I think people in general have come to expect the incredible lifetime of the Mars landers as the norm. It's not.

But since this is HN, I'm sure we all in the IT world are pretty confident in our estimations and our projects are a complete success all the time. Might explain why we are so disappointed with ESA. </sarcasm>