We are living with an active star we hardly understand and have barely explored. More than 1.3 million Earths could fit in the same volume as our sun, the source of our world’s energy — with fossil fuels, wind and hydro power simply being converted into forms of solar energy. A single solar flare lasting only a few minutes generates a hundred-thousand times more energy than all of the world’s power plants combined over the course of a year.

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