The Sun has been gradually getting hotter for the past seven years, as part of its 11-year solar cycle, according to a new study.
For the first time, changes in the temperature of the Sun’s hot atmosphere, the corona, have been studied over a timescale of years.
“To do this, we analysed Extreme Ultraviolet radiation emitted by the corona, and measured by the Atmospheric Imaging Assembly telescopes aboard the Solar Dynamic Observatory spacecraft,” Huw Morgan, from Aberystwyth University and lead author of the study, told WIRED.
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Abigail Beall 