In the 64 hours before the Philae comet lander went into hibernation, it conducted experiments, deployed all 10 instruments, and returned data that is now being analysed.
The MUPUS (Multi-Purpose Sensors for Surface and Sub-Surface Science) instrument hammered a probe into the comet, however, despite using it at its highest setting, it was not able to penetrate deep into the surface, indicating that it landed on a surface as hard as ice.
Its unplanned bounce across the comet also yielded measurements at different locations which are now being analysed.
