October 29, 2003
Every year, the Earth returns to the same point in its orbit where it was when you were born.
A Powerful Solar Flare
Birthday · October 29, 2003
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APOD published October 29, 2003. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.
Yesterday, our Sun produced one of the most powerful solar flares in recorded history. Seen across the electromagnetic spectrum, the Sun briefly became over 100 times brighter in X-rays than normal. Over the next few days, as energetic particles emitted from these regions strike the Earth, satellite communications might be affected and auroras might develop. The flare and resulting CME, emitted from giant sunspot group 10486, was captured above as it happened by the by the LASCO instrument aboard the Sun-orbiting SOHO satellite. The disk of the Sun is covered to accentuate surrounding areas. The time-lapse movie shows the tremendous explosion in frames separated in real time by about 30 minutes each. The frames appear progressively noisier as protons from the flare begin to strike the detector. The SOHO satellite has been put in a temporary safe mode to avoid damage from the solar particle storm.