Suns and sun phenomenon.
The sun shines with lethal x rays as well as light. This picture was taken by an x-ray-sensitive telescope.
During a total solar eclipse, the sun’s shimmering carona can be seen from earth. It is usually invisible because of the sun’s bliding glare.
Vast streams of inivisible gas, millions of miles long, constantly flow out of the sun’s surface. This picture was taken with a sensitive solar telescope aboard Skylab.