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Astronomy

The Anatomy and Evolution of Solar Prominences

Quick fact

A single solar prominence can be larger than the Earth's diameter and contain plasma at only about 10,000 kelvin, while the surrounding corona is a million kelvin—yet the prominence stays cool and suspended for weeks or even months.

Why this is interesting

You've probably seen breathtaking images of fiery loops arcing off the Sun. But these 'flames' are actually anchored to the Sun's surface and can hover for months—what holds them up?

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The Anatomy and Evolution of Solar Prominences

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