The average Hackaday reader likely knows, at least in the academic sense, what a magnetic field looks like ... produce an approximation of what the field lines would look like on its electronic ...

to create a sounded visualization of the Laschamp event. They mapped the movement of Earth's magnetic field lines during the event and created a stereo sound version which is what you can hear in ...

Farther out in the tail, the lines of Earth's magnetic field have been stretched and warped into something much messier. Physicists didn't think chorus waves could form amid the stretched-out mess ...