COLOGNE, GERMANY - MAY 18: German Chancellor Angela Merkel meets the astronauts Pedro Duque, Alexander Gerst and Samantha Cristoforetti (L-R) after visiting a centrifuge in the DLR-Laboratory for Life Science Experiments during a visit of the European Astronauts Center (EAC) of the European Space Ageny (ESA) on May 18, 2016 in Cologne, Germany. Merkel is visiting the facilities, as well as the nearby German Center for Air and Space Travel (das Deutsche Zentrum fuer Luft- und Raumfahrt, or DLR) in order to promote Germany's participation in ESA's projects, which it sees is important to climate change, energy and agricultural sector research. (Photo by Volker Hartmann/Getty Images)
