A solar flare from sunspot 4479 triggered a brief radio blackout over parts of North America and the Pacific. Forecasters are now tracking an Earth-bound coronal mass ejection that could bring a moderate to strong geomagnetic storm on July 2. A powerful eruption from the Sun has triggered a radio blackout over parts of North America and the Pacific Ocean, while scientists are now tracking a fast-moving cloud of solar plasma that could spark a moderate to strong geomagnetic storm when it r... [2385 chars]
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