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Space A Prominent Solar Prominence from SOHO

Discussion in 'Tech, Science, and Space' started by Robby, Mar 15, 2009.

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  1. Robby

    Robby The Robot

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    NASA Astronomy Picture Of The Day
    A Prominent Solar Prominence from SOHO


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    A Prominent Solar Prominence from SOHO
    Credit: SOHO - EIT Consortium, ESA, NASA

    Explanation: What's happened to our Sun? It was sporting a spectacular -- but not very unusual -- solar prominence. A solar prominence is a cloud of solar gas held above the Sun's surface by the Sun's magnetic field. In 2004, NASA's Sun-orbiting SOHO spacecraft imaged an impressively large prominence hovering over the surface, pictured above. The Earth would easily fit under the hovering curtain of hot gas. A quiescent prominence typically lasts about a month, and may erupt in a Coronal Mass Ejection (CME) expelling hot gas into the Solar System. Although somehow related to the Sun's changing magnetic field, the energy mechanism that creates and sustains a Solar prominence is still a topic of research.



    (Via NASA)
     

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