The sun gets its energy by nuclear fusion, and this creates a very hot outer layer. In fact the sun appears to us as a black body would when heated to about 6000 degC. You may be puzzled by reference...
The most common examples of nuclear energy at the present time are the PWR and BWR reactors. There are 104 operating reactors in the US and about 50 in France. The Canadian developed PHWR is also...