ESA's Swarm satellites checked before launch.
Three Swarm satellites waiting for checks in preparation to join them to the launch adapter. Launch is scheduled for November 14.
From ESA: The Swarm mission was designed to measure the magnetic signals that stem from Earth's core, mantle, crust, oceans, ionosphere and magnetosphere. This will lead to better understanding of the processes that drive Earth's dynamo, which currently appears to be weakening. By studying the complexities of Earth's protective shield, Swarm will provide a clear insight into processes occurring inside the planet. Along with measurements of conditions in the upper atmosphere, a better knowledge of the near-Earth environment and the Sun's influence on the planet can be realised.