Space Trivia : The corona is hotter than the surface of the sun.

CME on Feb. 24, 2015 Image
The sun's outer atmosphere, known as the corona, is hotter than its surface.

How old is the sun?
4.5 billion years old

Sunspots are cooler than "normal" areas on the surface of the sun.
True

How long does it take sunlight to reach Earth?
8 minutes

What fusion reaction is occurring in the sun's core?
Hydrogen into helium