There’s a jet stream in our core19 December 2016
There’s a jet stream in our core19 December 2016 We would normally associate jet streams with the weather but, thanks to ESA’s magnetic field mission, scientists have discovered a jet stream deep below Earth’s surface – and it’s speeding up.
Swarm reveals why satellites lose track28 October 2016
Swarm reveals why satellites lose track28 October 2016 Satellite engineers have been puzzling over why GPS navigation systems on low-orbiting satellites like ESA’s Swarm sometimes black out when they fly over the equator between Africa and South America. Thanks to Swarm, it appears ‘thunderstorms’ in the...
Magnetic oceans and electric Earth03 October 2016
Magnetic oceans and electric Earth03 October 2016 Oceans might not be thought of as magnetic, but they make a tiny contribution to our planet’s protective magnetic shield. Remarkably, ESA’s Swarm satellites have not only measured this extremely faint field, but have also led to new discoveries about...