The recent changes in Earth’s magnetic field

New data from Europe’s Swarm constellation of satellites detail the recent bigger-than-expected changes that have been occurring in the Earth’s magnetic field. Data from Swarm, combined with observations from the CHAMP and ├śrsted satellites, show clearly that the field has weakened by about 3.5% at high latitudes over North America, while it has strengthened about 2% over Asia. The region … Continue reading The recent changes in Earth’s magnetic field