December 14, 2004
Sun Song

Scientific American is carrying this article about a new discovery in solar research. By using a new NASA probe, scientists have discovered a mechanism that could explain why the corona of the sun is so much hotter than the surface, a riddle that's been puzzling astronomers for decades. It seems that very low frequency sound waves are transmitting energy outward from the surface, causing temperatures to rise the farther from the sun you go.

Unfortunately this was at the limit of the probe's detection capabilities, so not much more is known. It's hoped these findings will help guide the construction of a new probe that will provide more information.

Posted by scott at December 14, 2004 10:47 AM

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