Sun's outer atmosphere (the corona) is millions of degrees hotter than its surface
Aug 14, 2026
05:03 pm
What's the storyISRO's Aditya-L1 mission, India's first solar observation project in space, has made significant contributions to understanding one of the most puzzling mysteries in astrophysics: why is the Sun's outer atmosphere (the corona) millions of degrees hotter than its surface?
The research was published in the Astrophysical Journal Letters by a team led by Professor R Ramesh from the Indian Institute of Astrophysics (IIA).
