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Washington (UPI) Jul 12, 2010 Cameras on a NASA spacecraft captured activity on the sun as powerful, glowing magnetic loops erupted from a solar hot spot, U.S. officials said. NASA's Solar Dynamics Observatory recorded the events in the extreme ultraviolet range of the light spectrum over several days beginning July 6, Space.com reported Monday. The arcing loops are the routes taken by solar particles following ever-changing magnetic field lines on the surface of the sun, Space.com said. The arcing solar material appears blazing-white at the sun's surface, fading to a more dull orange near the top of the arcs. The Solar Dynamics Observatory was launched in February on a planned five-year mission to study the sun in detail never achieved before, concentrating on solar storms that can be a risk to satellites and astronauts in space, Space.com reported.
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NASA Retires TRACE Spacecraft After Highly Successful MissionWashington DC (SPX) Jul 02, 2010 NASA's Transition Region And Coronal Explorer, known as TRACE, conducted its final observations of the sun on June 21. Although launched on April Fools' Day, 1998, TRACE quickly proved its worth, observing - for the first time - an entire cycle of solar activity and imaging dynamic coronal phenomena. TRACE provided images at five times the magnification of those taken by the Extreme Ultrav ... read more |
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