(Phys.org) -- Those who experience a total solar eclipse are overwhelmed as they look at the circle of light that surrounds our Sun. Laypeople may find it enchanting, but researchers have been racking their brains over it for decades. Why, they wonder, does this gaseous layer the corona have a temperature of several million degrees? Sami K. Solanki, Director at the Max Planck Institute for Solar System Research in Katlenburg-Lindau, and his team are tackling the problem with ingenious observation methods and computer simulations.
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