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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.


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Year-old Proba-V charting global greenery

07 May 2014

A year after its launch, ESA's Proba-V is set to make a giant leap for a minisatellite: formally taking over the task of continuously charting our planet's global vegetation.

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What lies beneath?

09 January 2014

A field campaign dedicated to SMOS and GOCE has revealed unexpected similarities in the missions' very different types of measurements. This surprising discovery could lead to a better understanding of what is happening deep under the Antarctic ice sheet.

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Earth's gravity scarred by earthquake

03 December 2013

ESA's GOCE satellite has revealed that the devastating Japanese earthquake of 2011 left its mark in Earth's gravity - yet another example of this extraordinary mission surpassing its original scope.

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Earth at your fingertips

12 December 2012

The wonders and glory of our planet are just a few clicks away. Download ESA's first iBook and start discovering Earth from a new perspective.

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ESA Euronews: Measuring Earth's vital magnetic field

26 October 2012

Earth's magnetosphere is an invisible shield, protecting our planet from harmful solar radiation. Many living organisms - from bacteria to insects or birds - seem to rely on Earth's magnetic field to navigate.

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Earth's magnetosphere behaves like a sieve

24 October 2012

ESA's quartet of satellites studying Earth's magnetosphere, Cluster, has discovered that our protective magnetic bubble lets the solar wind in under a wider range of conditions than previously believed.

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Gravity satellite to benefit future missions

19 July 2012

ESA’s GOCE satellite is not only mapping Earth’s gravity with unrivalled precision, but is also revealing new insight into air density and wind in space. This additional information is expected to improve the design and operation of future Earth observation missions.

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Mapping the Moho with GOCE

09 March 2012

The first global high-resolution map of the boundary between Earth's crust and mantle - the Moho - has been produced based on data from ESA's GOCE gravity satellite. Understanding the Moho will offer new clues into the dynamics of Earth's interior.

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Earth's magnetic field provides vital protection

08 March 2012

A chance alignment of planets during a passing gust of the solar wind has allowed scientists to compare the protective effects of Earth's magnetic field with that of Mars' naked atmosphere. The result is clear: Earth's magnetic field is vital for keeping our atmosphere in place.

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Proba-1 charting Earth's radiation belts for a decade

07 November 2011

ESA's Proba-1 recently celebrated its tenth birthday in orbit. Kept busy as an Earth-observing mission, the microsatellite has also been building a detailed...