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Sun Power, Part 2

It was Galileo, using his newly invented telescope, who, around 1600, saw sunspots for the first time in western history. From that point forward, sunspot observations were made on a regular basis by astronomers throughout Europe. 834 more words


Coming to Grips With the Sun

It’s not well understood how the Sun affects the Earth.

We count the number of sun spots, measure the sun’s irradiance and the size of solar storms. 680 more words