ESA title

The mission

ESA’s three-satellite Swarm mission is dedicated to unravelling one of the most mysterious aspects of our planet: the magnetic field. Although invisible, the magnetic field and electric currents in and around Earth generate complex forces that have immeasurable impact on everyday life. By analysing the different characteristics of the observed field, Swarm will lead to new insight into many natural processes, from those occurring deep inside the planet to weather in space caused by solar activity.

The launch

Date: 22 November 2013
Site: Plesetsk Cosmodrome, Russia
Launcher: Rockot

Swarm
Earth’s stormy heart
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Insights into Earth’s molten outer core from space

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High-energy protons during solar storm over the North Pole
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Swarm detects rare proton spike during solar storm

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South Atlantic Anomaly 2025 compared to 2014
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Swarm reveals growing weak spot in Earth’s magnetic field

13/10/2025 100339 views 319 likes
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Atmospheric hot flush during a solar storm
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Swarm in tune with atmospheric hot flushes

27/06/2025 1446 views 37 likes
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Swarm detects tidal signatures of our oceans

22/01/2025 4272 views 70 likes
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Swarm constellation
Enabling & Support

Swarm vs. space radiation – the first 10 years

10/12/2024 2644 views 38 likes
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Steve’s twin captured by an all-sky digital camera
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Swarm helps discover Steve's long-lost twin

03/06/2024 20429 views 97 likes
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Aurora near Frankfurt, Germany, May 2024
Space Safety

The May 2024 solar storm: your questions answered

17/05/2024 26974 views 65 likes
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Solar flare captured by ESA’s Proba-2 SWAP
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SMOS and Swarm team up to spot huge solar storm

26/03/2024 23256 views 24 likes
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10 remarkable Earth facts

18/04/2023 619872 views 2819 likes
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Magnetic field sound waves
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The scary sound of Earth’s magnetic field

24/10/2022 143636 views 408 likes
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Artist's view of Swarm
Space Safety

Swarm dodges collision during climb to escape Sun’s wrath

14/07/2022 27369 views 181 likes
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Swarm reveals magnetic waves across Earth’s outer core
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Swarm unveils magnetic waves deep down

23/05/2022 11148 views 108 likes
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Earth's protective shield
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Swarm and Cluster get to the bottom of geomagnetic storms

15/12/2021 7641 views 118 likes
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Greater white-fronted geese
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Swarm yields new insight into animal migration

09/07/2021 9936 views 118 likes
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Sprites seen over the Czech Republic and detected by Swarm
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The curious incident of Swarm and sprites in the night-time

18/05/2021 8011 views 162 likes
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Magnetic data show links Antarctica to ancient neighbours
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Antarctica’s magnetic link to ancient neighbours

09/03/2021 12999 views 144 likes
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Energy from solar wind favours the north
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Energy from solar wind favours the north

12/01/2021 10186 views 141 likes
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Swarm probes weakening of Earth’s magnetic field

20/05/2020 237156 views 719 likes
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Swirling iron
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Magnetic north and the elongating blob

14/05/2020 30747 views 234 likes
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Steve over the picket fence

27/11/2019 10380 views 57 likes
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3D Earth in the making

15/05/2019 14864 views 115 likes
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Tug-of-war drives magnetic north sprint

15/05/2019 21101 views 211 likes
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Simulation of the magnetic field in Earth’s core
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Swarm helps explain Earth’s magnetic jerks

01/05/2019 18698 views 273 likes
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Cloud-free Europe
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New observations for the new economy

08/03/2019 10937 views 90 likes
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Magnetic north on the move
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Swarm helps pinpoint new magnetic north for smartphones

08/02/2019 15867 views 242 likes
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Electric nature
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Swarm turns to whistlers and storms

13/04/2018 5673 views 86 likes
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Swarm tracks elusive ocean magnetism

10/04/2018 16596 views 116 likes
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Steve
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Getting to know Steve

16/03/2018 16078 views 181 likes
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Swarm trio becomes a quartet

22/02/2018 8913 views 87 likes
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Earth's protective shield
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Swarm details energetic coupling

15/02/2018 5352 views 83 likes
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Meet Steve
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When Swarm met Steve

21/04/2017 44843 views 302 likes
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Birkeland currents
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Supersonic plasma jets discovered

23/03/2017 40313 views 314 likes
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Seasonal asymmetry
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Swarm detects asymmetry

22/03/2017 6679 views 81 likes
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Unravelling Earth’s magnetic field

21/03/2017 42963 views 288 likes
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Artist's view of Swarm
Enabling & Support

Anatomy of a debris incident

01/02/2017 10199 views 55 likes
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Jet stream in Earth’s core
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There’s a jet stream in our core

19/12/2016 44353 views 419 likes
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GPS interruptions
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Swarm reveals why satellites lose track

28/10/2016 19349 views 233 likes
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Magnetic oceans and electric Earth

03/10/2016 17448 views 160 likes
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Earth’s magnetic heartbeat

10/05/2016 63098 views 324 likes
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Core and crust from Swarm
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Magnetic complexity begins to untangle

22/06/2015 16407 views 120 likes
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Magnetic field changes
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Swarm reveals Earth’s changing magnetism

19/06/2014 135363 views 338 likes
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Swarm magnetic field compared to model
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Swarm’s precise sense of magnetism

07/05/2014 9832 views 75 likes
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Swarm heads for new heights

06/02/2014 8158 views 80 likes
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Enabling & Support

End of the beginning for Swarm trio

26/11/2013 7273 views 81 likes
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Swarm constellation deploys booms

23/11/2013 7262 views 56 likes
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ESA’s Swarm trio on its way to watch over our planet’s magn…

22/11/2013 11223 views 47 likes
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Swarm ready for launch

22/11/2013 3484 views 28 likes
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Swarm upper composite hoisted to the top of the service tower
Enabling & Support

Swarm launch timeline

21/11/2013 3379 views 10 likes
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Swarm mission team in training
Enabling & Support

Swarm mission control ready for triple launch

19/11/2013 6876 views 42 likes
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