FILE - In this Aug. 3, 2014 file photo taken by Rosetta's OSIRIS narrow-angle camera Comet 67P/Churyumov-Gerasimenko is pictured from a distance of 285 kms. (ESA/Rosetta/MPS for OSIRIS Team, File)
The picture released by the European Space Agency ESA on Wednesday, Nov. 12, 2014 was taken by Rosetta's lander Philae shortly after its separation from the mother spaceship (ESA)
The picture released by the European Space Agency ESA on Wednesday, Nov. 12, 2014 was taken by Rosetta's lander Philae shortly after its separation from the mother spaceship (ESA)
A model of Rosetta lander Philae stands on a model of comet 67P/Churyumov-Gerasimenko, at the European Space Agency ESA in Darmstadt, Germany (Michael Probst)
The picture taken with the navigation camera on Rosetta and released by the European Space Agency ESA shows the boulder-strewn neck region of Comet 67P/Churyumov-Gerasimenko (ESA)
The image released by the European Space Agency ESA on Wednesday, Nov. 12, 2014 shows an artist rendering by the ATG medialab depicting lander Philae separating from Rosetta ship (ESA, ATG Medialab)
Celebrating scientists in the main control room appear on a video screen at the European Space Agency (Michael Probst)