With only a few months left to the arrival of the Rosetta spacecraft
at its main destination, comet 67P/Churyumov-Gerasimenko, we invite
the comet community to compile a broad overview of our pre-Rosetta
knowledge on comets. We also wish to encourage cross-disciplinary
awareness between the various aspects of comets and methods used in
their study, which will be crucial for the interpretation of the data
collected by Rosetta. You are therefore invited to present your recent
results related to past- and on-going space missions, observational
studies from ground and from space, laboratory simulation, and
theoretical modelling.