Using measurements from ESA’s Swarm mission, scientists have developed a new tool that links the strength and direction of the magnetic field to the flight paths of migrating birds, such as greater white-fronted geese. This is a huge step forward to understanding how animals use Earth’s magnetic field to navigate vast distances. The image shows data from nearby Swarm overpasses, which were funnelled down to the GPS tracking points of migratory animals.
Read full story: Swarm yields new insight into animal migration