Published on September 25, 2017
To learn more about Earth’s magnetic field, the three Swarm satellites were launched on 22 November. Like 3D compasses, they are measuring the strength and direction of the magnetic field.
This is the third of three videos:
Magnetic field: an introduction:
Magnetic field: why it matters:
Magnetic field: learning more with Swarm
More about Swarm: www.esa.int/swarm
