The Peaceful Sun…

The Peaceful Sun?!?

(… as seen in Visible Light…)

(…as seen in X-Rays!)

Is the Sun made of Gas? …Not Exactly…

Q: How to support the Sun against Gravitational Collapse?

A: “Hydrostatic Equilibrium”between Pressure & Gravity!

Getting to know the Solar Interior……with “Helioseismology”

…and with various other methods… e.g., Neutrinos from Core (see below…)

Layers of the Sun:

During aTotal Solar Eclipse…

…we can see the Solar “Corona”!

“Sunspots” = Magnetic Storms on the surface

of the Sun

A lack of Sunspots… …led to the “Little Ice Age”!

Twisted-up Magnetic Fields…

…causes the “Solar Cycle”

Solar Violence… Prominences & Flares…

Aurora“Borealis”(Northern Lights)

& “Australis”(Southern Lights)