SOLAR RADIO STORM: Did you know sunspots can make noise? Consider the following: “Over the past few days, I have been recording a sustained solar radio storm at 180 MHz,” reports amateur radio astronomer Thomas Ashcraftof New Mexico. “It consists of Type I radio bursts and sounds like ocean surf.Here is an audio sample from March 27th at 1930 UT. The sun seems to be entering a new phase of dynamism.”

Radio emissions like these are caused by plasma instabilities in the sun’s atmosphere above sunspots. With the sun becoming ‘radio-active,’ it’s no coincidence that sunspots are emerging in abundance. Leading the way is behemoth active region AR1176,…

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