The interior of 67P/C-G comet as seen by CONSERT bistatic radar on ROSETTA, key results and implications

International audienceThe structure of the nucleus is one of the major unknowns in cometary science. The scientific objectives of the Comet Nucleus Sounding Experiment by Radiowave Transmission (CONSERT) [3] aboard ESA's spacecraft Rosetta are to perform an interior characterization of comet 67P/Churyumov-Gerasimenko nucleus. This is done by means of a bistatic sounding between the lander Philae laying on the comet's surface and the orbiter Rosetta. We will describe shortly measurements that explored the interior of the comet, discuss results, their interpretation in terms of the internal structure and composition