NASA astronaut Terry Virts, Commander of Expedition 43 on the International Space Station, is seen here recording a special message for a science conference along with his crewmates cosmonaut Mikhail Kornienko, Russian Federal Space Agency (ROSCOSMOS), ESA (European Space Agency) astronaut Samantha Cristoforetti, NASA Astronaut Scott Kelly (bottom left), Russian cosmonauts, Anton Shkaplerov, and Gennady Padalka (ROSCOSMOS).
Date April 6, 2015