Its heart breaking to see these missions come to an end though they are all planned only for a few weeks in the first place. I m really glad that Philae came along this far , this was a really really complicated mission - Right from soft landing on the comet nucleus( remember the previous attempts in getting to a comet were impact probes) , loosing that one thruster prior to detaching from Rosetta , having troubles with primary & second batteries , going into safe mode , hibernating and re-awaking again , constant absence of sunlight to recharge batteries and all the delay in receiving signals back from Rosetta - This must have been one heck of an emotional ride for all the involved engineers and scientists. Mad Respect !

I m not sure if Philae conducted all the originally planned experiments or not , Would love for someone to comment on that.

And I love what message they had in the final video update, - now that they shut down the communication module of Rosetta that would talk to Philae - all those power would be used to conduct other experiments ! They managed to throw in some positivity there.