Word: sunspots
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Dates: during 1940-1949
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Cause of the trouble: sunspots. According to astronomers' most plausible theory, sunspots shoot out streams of protons and electrons, electrified subatomic particles. The group of spots on the sun last week was 400,000,000 sq. mi. in area. This was not the biggest spot group of recent years; in fact, the eleven-year sunspot cycle is now in a declining phase. But this time the earth was right in the line of fire...