Philae landing craft goes silent after battery down

Scientists at the Rosetta project recently revealed that they lost contact with the Philae landing craft. The craft is silent now after the depletion of batteries.
Philae is the first of its kind which works on solar power. But now it went silent because it is far away from sun and batteries are not working.

Reference:

http://metro.co.uk/2014/11/15/european-space-agency-lose-contact-with-philae-after-the-probes-batteries-die-4949209/