While volcanic eruptions and earthquakes serve as immediate reminders that Earth’s insides are anything but tranquil, there are also other, more elusive, dynamic processes happening deep down below the Earth. Using information from ESA’s Swarm satellite mission, scientists have discovered a completely new type of magnetic wave that sweeps across the outermost part of Earth’s outer core every seven years. This fascinating finding, presented at ESA’s Living Planet Symposium, opens a new window into a world we can never see.
Click here for original story, Swarm satellites unveil magnetic waves that sweep the outermost part of Earth’s outer core
Source: Phys.org