In the International Space Station's Zvezda Service Module, European Space Agency astronaut Alexander Gerst (foreground) and Russian cosmonaut Alexander Skvortsov, both Expedition 40 flight engineers, participate in a training session in preparation for the rendezvous and docking of ESA's fifth and final Automated Transfer Vehicle (ATV-5). ATV-5 will deliver more than seven tons of scientific experiments, food and other supplies when it docks to the aft end of Zvezda on August 12.