Rosetta mapped comet 67P’s two lobes and their layered terrain. Researchers found that the layers fit better when each lobe was considered separately, supporting the interpretation that two small bodies formed apart and later joined gently. That ancient merger was not witnessed; it is an inference supported by the comet’s shape and layer structure, not a recorded event.
The visuals are original illustrations of comet 67P and a research desk, not Rosetta images; the desk printouts are illustrative, not mission data or calculation output.
Sources:
- Nature — layered structure and contact-binary interpretation: https://www.nature.com/articles/nature15511
- ESA — how Rosetta’s comet got its shape: https://blogs.esa.int/rosetta/2015/09/28/how-rosettas-comet-got-its-shape/
- ESA — how comets are born: https://www.esa.int/Science_Exploration/Space_Science/Rosetta/How_comets_are_born
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