The sun unleashed two spectacular prominence eruptions on Aug. 20 — and they may be among the most jaw-dropping events of the entire solar cycle. First came a colossal eruption off the sun's ...
At more than one million degrees, the sun's atmosphere—the corona—is incredibly hot; but not everywhere. Time and again, huge structures of significantly cooler solar plasma—about 10,000 ...
The sun’s rhythmic rise and fall in the sky can make it easy to forget that our star is unpredictable—a roiling, burbling mass of magnetically knotted plasma that governs the entire solar system. But ...
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