ESA astronaut Alexander Gerst talks with US media about the Rosetta mission, amongst other topics. Alexander is onboard the International Space Station at a member of the Expedition 40 crew and is living and working on the ISS for five and a months for the Bluedot mission. On 6 August, ESA's comet chaser Rosetta arrived at comet 67P/Churyumov-Gerasimenko after a 10-year journey.