Source: NASA Science News
OSIRIS narrow angle camera view of 67P/C-G from a distance of 1000 km on 1 August 2014.
Note that the dark spot is an artefact from the onboard CCD camera associated to bad pixels.
Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA
As the European Space Agency's Rosetta spacecraft closes to within 1000 km of Comet 67P/Churyumov-Gerasimenko, the Rosetta science team has released a new image and temperature measurements of the comet's core. The temperature data show that 67P is too hot to be covered in ice and must instead have a dark, dusty crust.(learn more)