"Philae's planned mission is expected to come to an end when batteries are exhausted sometime on Saturday; future contacts are possible if the illumination cond

"Philae's planned mission is expected to come to an end when batteries are exhausted sometime on Saturday; future contacts are possible if the illumination conditions change as the comet orbits closer to the Sun, enabling solar power to flow again." http://blogs.esa.int/rosetta/2014/11/15/turning-philae/ http://blogs.esa.int/rosetta/2014/11/15/turning-philae/ (Note: that was written before the sucessful reorientation occurred)