Hot Answer to a Solar Mystery
Compared to the surface, the sun's atmosphere is blazing hot. So what's heating it?
By Liz Kruesi
Nov 30, 2015 6:00 AMNov 22, 2019 8:01 PM
The sun’s atmosphere is even hotter than its surface, possibly due to “nanoflares” confirmed by astronomers this year. | Courtesy of NASA/SDO and the AIA, EVE and HMI science teams
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