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| | | | | | | | | | Click on image to see the huge flare produced on 4 November 2003 |
4 November
2003: On 4 November 2003, sunspot region 10486 released a massive solar flare, bigger than anything yet seen in recorded observational history.
The flare saturated the X-ray detectors on several monitoring satellites. It was estimated as an X25 intensity flare, a level never seen before by ESA's SOHO spacecraft.
The associated coronal mass ejection (CME) came out of the Sun's surface at about 2300 kilometres per second (8.2 million km/h).
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