Pick of The Week
 
 

Large Eruptive Prominence (May 15, 2002)

  • Higher resolution version (TIF,5.3M)
  • A solar prominence in extreme ultraviolet light (ionized helium at 304) is seen rising and pushing away from the Sun on 14 May 2002. Prominences are huge clouds of relatively cool, dense plasma suspended in the Sun's hot, tenuous corona. Magnetic fields built up enormous forces that propelled particles out beyond the Sun's surface. Emission in this spectral line shows the upper chromosphere at a temperature of about 60,000 degrees K. For a sense of scale, the prominence extends about 10 Earths out from the Sun. It had disappeared by the time the next image was taken about 6 hours later.

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