SOLAR STATIC: Sunspot AR1513 erupted on the 4th of July, producing an M2-class solar flare and a burst of shortwave radio noise that roared out of the loudspeakers of receivers on Earth. Amateur radio astronomer Thomas Ashcraft of New Mexico recorded the solar static at 21 MHz:
These radio sounds are caused by beams of electrons accelerated by the flare. As the electrons slice through the sun's atmosphere, they generate a ripple of plasma waves and radio emissions detectable on Earth 93 million miles away. More radio bursts are in the offing as AR1515 and AR1513 crackle with magnetic explosions. Ham radio operators, point your Yagis toward the sun!