NEW : Philae 's operators satisfied that the probe completed its mission on the comet . Comment: Its operators on Earth lost contact with it early Saturday . It is supposed to run on solar power , but now there 's not enough sunlight for that . Philae 's primary battery was running out and is expected to be dead .
NEW : Philae 's operators satisfied that the probe completed its mission on the comet . Comment: It is supposed to run on solar power , but now there 's not enough sunlight for that . Philae 's primary battery was running out and is expected to be dead .