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Solar Prominence Eruption – 30 hour sun storm – September 26 – 27, 2009
March 12th, 2010
“The twin STEREO spacecraft (called Behind and Ahead denoting their relative positions in space), now almost 120 degrees apart, captured this large and dramatic prominence eruption over about a 30-hour period between Sept. 26-27, 2009. Prominences, called filaments when they … Read more