The Sun

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The official SOHO mission website is

Slide 20

Questions for the future

Exactly how large is the core?

How does the solar dynamo work?

What heats the corona?

How does solar activity affect our daily lives?

With time these questions will most likely be answered, but new ones will arise!

Image: SOHO (NASA/ESA).

Observing the Sun in different wavelengths (such as ultraviolet and H-alpha) reveals yet more information.

Image: Observatório Astronómico U. Coimbra