Ask an Astronomer FOR KIDS! - The Sun

What is the sun?
How does the sun shine?
How long has the sun been shining?
What is the sun made of?
How large is the sun compared to Earth?
Is the sun the largest star?
How hot is the sun?
How far away is the sun?
Does the sun spin?
Does the sun move in space?
Why does the sun have spots?
How big is a sunspot?
Why are sunspots darker than the rest of the sun?
What happens during a solar eclipse?
Will the sun ever stop shining?
Why is the sun round?