STEREO - Solar Terrestrial Relations Observatory
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Popping Out All Over

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As the STEREO (Behind) spacecraft observed in extreme UV light, the Sun popped off no fewer than six eruptions over just two days (Aug. 14-15, 2010). At one point, three were occurring events at the same time. Most these were eruptive prominences in which cooler clouds of gases above the surface break away from the Sun. The most powerful of these events, a coronal mass ejection, began around 6:30 UT on Aug. 15. It was harder to see from this spacecraft's angle since it blasted out from the whiter active region in the lower center, so it had the Sun as its backdrop.


Last Revised: October 03, 2023 17:04:35 UTC
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