Science: Sunspots & Radio

The hot belly of the sun last week erupted in an acne of sunspots, a chain of splotches 160,000 miles long. This was the strongest sunspot activity since the sun entered a new cycle two years ago (TIME, Nov. 13, 1933), started climbing irregularly toward the intensity peaks due in 1938. Vortices of cooling gas on the solar surface, sunspots in their times of vigor have been associated by scientists with magnetic disturbances on Earth and poor radio reception.

A new view of sunspot effect on radio was presented last week in Science by...

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