Fred Jansen, Rosetta mission manager, ESA; Stephan Ulamec, Philae lander manager, DLR; Markus Bauer, Science Programme Officer, ESA; Holger Sierks, Principal Investigator of OSIRIS, MPS Göttingen; Prof. Jean Pierre Bibring, Philae lead scientist, IAS Orsay; Andrea Accomazzo, Rosetta flight director, ESA, presented during a press briefing announcing the final two Rosetta landing sites, along with their operational challenges and scientific expectations, on 15 September 2014, at ESA Headquarters, Paris, France.