Huge Solar Flare Detected By Satellites, Warning Of More To Come
FORBES - Sun-watching satellites spotted the most powerful solar flare in more than three years on Sunday.
The solar explosion was measured as an M4.4 flare. Solar flares are categorized as small C-class flares, medium-sized M flares and major X-class flares. Each class also has subcategories from 1 to 9, so an M9 flare is stronger than an M4.
Flares send out a massive burst of electromagnetic radiation that can cause radio blackouts, sometimes across the entire planet in the case of powerful X-class flares. M-class flares like Sunday’s usually create only limited disruptions on Earth.
“X-rays and UV radiation from the flare ionized the top of Earth's atmosphere, producing a shortwave radio blackout over the South Atlantic... Ham radio operators and mariners may have noticed strange propagation effects at frequencies below 20 MHz, with some transmissions below 10 MHz completely extinguished.”
But Phillips notes that the flare and an associated coronal mass ejection were not directed at Earth, but rather erupted from just behind the sun’s..... READ MORE'
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