corona
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Sun’s Paradox: Coldest Region Hides a Million-Degree Secret in Its Corona
Nearly 5,000 kilometers above the sun's surface lies a century-old question for solar physicists—how are temperatures in the star's upper atmosphere (corona) hundreds of times hotter than temperatures at the sun's visible surface?
Latest Research Articles
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Smithsonian, Draper Developing New Sensor for NASA's Solar Probe Plus Mission to the Sun
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NASA Aims for the Sun, Agency May Send a Solar Probe in 2018
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Sun's Oldest Mystery Solved: Why is Sun's Atmosphere Hotter Than Its Surface?
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ESA’s Proba-3 Satellite to Create its Own Solar Eclipse
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NASA Detects Dark Hole in Sun
