One more first for the Rosetta mission… sounds of Philae landing on Comet 67P/Churyumov-Gerasimenko.
ESA
The SESAME-CASSE instrument sensors on the feet of the Philae lander recorded the sound at the moment of contact with Comet 67P/Churyumov-Gerasimenko.
ESA/ATG medialab
Irene W. Pennington Planetarium 