Rosetta’s lander Philae has woken up after seven months in hibernation on the surface of Comet 67P/Churyumov-Gerasimenko. The signal was received at 10:28 pm CEST on 13th June. The 300 exchanged data packets revealed that Philae also must have been awake earlier but was not able to send signals.
Airbus Defense and Space built Rosetta probe deployed Philae on Comet 67P/Churyumov-Gerasimenko on 12th November 2014 but Philae shut down already on 15th November after being in operation for only 60 hours. Since March 2015 the communication unit on orbiter Rosetta was turned on to watch out for any signals from Philae.