Ultra-high energy cosmic particles produce unusual radio flash

I stumbled across this today.  It seems that Earth is getting hit with these high energy flashes about once a day.  Not sure of the significance.  Looks worthwhile to investigate though.

http://science.monstersandcritics.com/n … adio_flash

"They showed that whenever a very energetic cosmic particle hit the Earth atmosphere a corresponding radio pulse was recorded from the direction of the incoming particle."