Comet 67P on July 14, 2014 July 17, 2014 By Observing Space Share this: Comet 67P/Churyumov-Gerasimenko on July 14, 2014 The comet rotates once every 12.4 hours. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA Share this: