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THEMATIC AREA

Missions

Explore the European Space Agency's Earth Observation satellite missions. Learn all about ESA's dedicated Earth Explorers or collaborations with other agencies through the Third Party Missions programme.

Swarm
Earth Explorers

Swarm

Swarm is dedicated to creating a highly detailed survey of the Earth’s geomagnetic field and its temporal evolution as well as the electric field in the atmosphere using a constellation of three identical satellites.

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INSTRUMENTS

Explore the many instruments the European Space Agency use to observe the Earth. ESA offer data from a wide range of optical, radar, atmospheric, altimetric and gravimetric instrumentation.

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Earth Explorers

ASM

The Absolute Scalar Magnetometer on the Swarm satellites measures the strength of the magnetic field.

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Earth Explorers

EFI

The Electric Field Instrument aboard the Swarm satellites is the first 3D ionospheric imager in space.