Initial readings from a new three-satellite observation network for the planet’s magnetic field also revealed that the magnetic north pole is drifting southward toward Siberia.
Each satellite in the European Space Agency’s “Swarm” mission is equipped with several sensors, including magnetometers that measure the magnetic field's strength and direction.
But given the limited amount of time the mission has been operating, researchers aren’t too concerned with the weakening of the field.
They say it’s probably normal, and the protective cloak around Earth should regain its strength in the near future.
Photo: European Space Agency