Sun Blast Cloud Clocked - Hot 2,000 Miles Per Second! | Video

A corononal mass ejection (CME) was witnessed by NASA’s Solar TErrestrial RElations Observatory (STEREO) spacecraft on July 23rd, 2012. It was recorded at between 1,800 and 2,000 miles per second, one of the fastest times on record.
credit : NASA / STEREO
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