By Alexis Rouillard, CNRS researcher, IRAP
Why is the Sun’s atmosphere two hundred times hotter than its surface? How are solar winds and thunderstorms created? To answer these major questions in astrophysics, the Parker Solar Probe and Solar Orbiter space probes set out in 2018 and 2020 to discover the environment close to the Sun: the solar corona. After several years of observations, they have highlighted, very close to the Sun, an extremely dynamic environment constantly disturbed by ejections of material and thus provide new clues to the formation of solar winds and storms.
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[image] ©Ascendance