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CREDIT
Spacecraft: ESA/ATG medialab; comet, left: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA; comet, top right: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0; data: Feldman et al (2015).