The magnetic field is arguably one of the most mysterious features of our planet. Our #SwarmMission is continually yielding more insight into how our protective shield is generated, how it behaves and how it is changing. Adding yet another string to its bow, Swarm is now tracking changes in the magnetic field produced in the oceans in more detail that ever before. #MagneticField
http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/Swarm_tracks_elusive_ocean_magnetism
