The Earth’s atmosphere bears precious little resemblance to what it looked like at the start of the Industrial Revolution. As radio technology has advanced and spread, the signals that transmitters produce — specifically the Very Low Frequency (VLF) variety — have changed the way that the upper atmosphere and the Van Allen Radiation Belts interact, according to a study recently published in the journal Space Science Reviews. In effect, these radio waves may be enveloping the globe like an electromagnetic comforter, protecting it from satellite-frying space radiation.
Emmis Communications has agreed to sell leading hip-hop station Power 106 in Los Angeles to the media arm of Meruelo Group, a holding company based in California. The price tag: $82.75 million, pending FCC and other approvals by regulators.
Every day, thousands of enigmatic objects in space produce bursts of radio waves that flash for just a few milliseconds yet are capable of generating as much energy as 500 million suns.