‘Powerful auroras’ on alien planets may be sending strange radio signals toward Earth

Four brand-new alien planets have potentially been discovered after scientists detected the shimmering radio flashes of auroras in those planets’ atmospheres, a new study says.

Auroras occur when solar wind — intense gusts of electric particles belched out by the sun — smash into a planet’s magnetic shield. Earth experiences auroras near the north and south poles, where miraculous displays of color and light streak through the evening sky.

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