The geomagnetic field is a fundamental property of our planet – it protects us from the solar wind, helps us navigate, and observations of local and global geomagnetic field variation on timescales from hours to years reveals information on a multitude of Earth and near-Earth phenomena such as ocean circulation pattern, tides, plasma bubbles in the Earth ionosphere and jet-streams in the core of our planet. Magnetic field fluctuations associated with natural phenomena such as earthquakes and hurricanes can also be observed, and close monitoring of the geomagnetic field variations by satellite systems will further enhance our knowledge and understanding of the coupling of our complex Earth and near-Earth system.
23 March 2017
Information from ESA's magnetic field Swarm mission has led to the discovery of supersonic plasma jets high up in our atmosphere that can push temperatures up to almost 10,000°C.
21 March 2017
ESA's Swarm satellites are seeing fine details in one of the most difficult layers of Earth's magnetic field to unpick - as well as our planet's magnetic history imprinted on Earth's crust.
19 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.
10 May 2016
With more than two years of measurements by ESA's Swarm satellite trio, changes in the strength of Earth's magnetic field are being mapped in detail.
27 July 2015
Data from ESA's GOCE gravity satellite are being used to improve models of Earth's geology, indicating the potential locations of subsurface energy sources.
For the first time ever, two of ESA's flagship space missions - Cluster and Swarm - have joined forces to simultaneously measure the properties of Earth's magnetic field at two different altitudes.
22 June 2015
After a year in orbit, the three Swarm satellites have provided a first glimpse inside Earth and started to shed new light on the dynamics of the upper atmosphere - all the way from the ionosphere about 100 km above, through to the outer reaches of our protective magnetic shield.
16 April 2015
Going far above and beyond its original mission objectives, results from the GOCE gravity satellite are now being used to produce maps for geothermal energy development.
19 June 2014
The first set of high-resolution results from ESA's three-satellite Swarm constellation reveals the most recent changes in the magnetic field that protects our planet.
07 May 2014
Although they were launched only five months ago, ESA's trio of Swarm satellites are already delivering results with a precision that took earlier missions 10 years to achieve.
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