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Latest James Klimchuk Stories

2009-08-18 09:14:07

The mystery of why temperatures in the sun's outer atmosphere are higher than near the sun's surface may have been solved by Japan's Hinode satellite. James Klimchuk, an astrophysicist at NASA's Goddard Space Flight Center's Solar Physics Laboratory, says new observations by that satellite have revealed why temperatures in the solar corona, the sun's outer atmosphere, soar to several million degrees Kelvin -- much higher than temperatures nearer the sun's surface. The answer is nanoflares --...

2009-08-14 14:44:00

GREENBELT, Md., Aug. 14 /PRNewswire-USNewswire/ -- Solar physicists at NASA have confirmed that small, sudden bursts of heat and energy, called nanoflares, cause temperatures in the thin, translucent gas of the sun's atmosphere to reach millions of degrees. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The sun's outer atmosphere, or corona, is made up of loops of hot gas that arch high above the surface. These loops are comprised of bundles of smaller, individual...

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2009-08-14 15:05:22

"Why is the sun's corona so darned hot?" asks James Klimchuk, an astrophysicist at the Goddard Space Flight Center's Solar Physics Laboratory in Greenbelt, Md. The mystery of why temperatures in the solar corona, the sun's outer atmosphere, soar to several million degrees Kelvin (K) "”much hotter than temperatures nearer the sun's surface"”has puzzled scientists for decades. New observations made with instruments aboard Japan's Hinode satellite reveal the culprit to be...

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2008-05-29 12:50:00

GREENBELT, Md. -- Scientists at NASA reveal a new understanding of the mysterious mechanism responsible for heating the outer part of the solar atmosphere, the corona, to million degree temperatures. "It has become clear in recent years that coronal heating is a highly dynamic process, but inconsistencies between observations and theoretical models have been a major source of heartburn. We have now discovered two possible solutions to this dilemma: energy is released impulsively with the...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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