No Signal Yet From Philae (But ESA Isn’t Giving Up)

Lights in the Dark

Philae's view from its current location on comet 67P/C-G. ( ESA/Rosetta/Philae/CIVA)Philae’s view from its current location on comet 67P/C-G, captured by one of its three CIVA cameras. (ESA/Rosetta/Philae/CIVA)

The first attempt by ESA and Rosetta to hear back from Philae has turned up only radio silence – but that doesn’t necessarily mean the lander is on permanent shutdown. It may just be that it’s still too cold and dark where Philae is to have sufficiently warmed up its components for reactivation.

“It was a very early attempt; we will repeat this process until we receive a response from Philae,” said DLR (Germany’s Aerospace agency) Project Manager Stephan Ulamec. “We have to be patient.”

After landing in an as yet unconfirmed location on comet 67P on November 12, 2014, Philae performed all of its primary science tasks before running out of battery power and entering a hibernation “safe” mode. Its reawakening is anticipated by mission engineers as the comet gets closer to the…

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