How Long Will Our Spacecraft Survive?

Rosetta will have enough power until about October 2016. Mission has been extended until then. My favourite spacecraft - the one that so nearly made it - Beagle 2 - so near and yet so far.

my favorite robotic spacecraft is: the one that comes next! -Each and every robotic spacecraft we send up teaches us something else, so every one that comes next begins by teaching us to reach for answers beyond what we can see and touch here, and then gives us information which allows us to discern the secrets of the universe! So the most important one and thus, my favorite, is always going to be: the next one we send up! that, and the one my daughter is working on