With its batteries depleted and not enough sunlight available to 
recharge, Philae has fallen into 'idle mode' -- a possibly long silence.
 In this mode, all instruments and most systems on board are shut down.
"Prior to falling silent, the lander was able to transmit all science
 data gathered during the First Science Sequence," says DLR's Stephan 
Ulamec, Lander manager, who was in the main control room at ESOC 
tonight.
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