[zepearl]

From https://en.wikipedia.org/wiki/Ground_dipole :

> After initially considering several larger systems (Project Sanguine), the U.S. Navy constructed two ELF transmitter facilities...

> Both transmitters were shut down in 2004. The official Navy explanation was that advances in VLF communication systems had made them unnecessary.

I then started reading about VLF https://en.wikipedia.org/wiki/Very_low_frequency and on that page I see this sentence:

> VLF waves used to communicate with submarines have created an artificial bubble around the Earth that can protect it from solar flares and coronal mass ejections; this occurred through interaction with high-energy radiation particles.

That sounds absolutely weird - how should that "...that can protect it from solar flares..." be interpreted?

EDIT: didn't notice Wikipedia's linked article - https://www.theatlantic.com/science/archive/2017/05/wow-guys...