The Outer Layers of the Sun

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Since the Sun is so bright, how is it possible to see its dim outer atmosphere (corona)?

Seen during eclipse, also with space instruments

Where does the solar wind come from?

Continuous ‘rain’ of charged particles from Sun

What are sunspots? Why do they appear dark?

Magnetically intense regions, 2000K cooler than surroundings (dark by contrast with hotter surface)

What is the connection between sunspots and the Sun’s magnetic field?

Sunspots are regions of intense magnetic field