The rest of the sun is too cold and too low pressure.
Nuclear fusion does not currently occur in nuclear plants. Nuclear plants use nuclear fission, where atoms are split to release energy. Fusion reactions, in which atomic nuclei combine to release energy, are not yet used commercially for electricity generation.
In all stars, the fusion only occurs in the inner core.
In areas of high temperature and high pressure
Thermonuclear reactions only occur in the core of the star because that's where the heat and pressure is so great that it overcomes the forces between the atoms. The surface stars is relatively cool. The Sun is only around 10,000° F on its surface. well below the several million degrees required for fusion.
No, because the highest amount of energy needed in a nuclear fusion is 40,000,000 K, which is only known to occur on the sun.
Nuclear fusion takes place in the core of the Sun, where the extreme pressure and temperature cause hydrogen atoms to fuse into helium. This process releases energy in the form of heat and light, powering the Sun and providing heat and light to our solar system.
Nuclear fusion only releases energy when elements lighter than iron are involved. This is because elements lighter than iron release energy due to the process of fusion, while elements heavier than iron require energy to be input for fusion to occur.
Because fusion of any kind requires VERY high temperature and pressure, which can take place only in the core of a star.
The only place in the universe where nuclear fusion can occur on its own is in the interior of stars. After closely observing nature, and adapting its laws to fulfill human requirements, our advanced civilization has succeeded in creating nuclear fusion at will, on a small scale. Unfortunately, the only useful application successfully developed so far with our superior intellect is the construction of nuclear bombs and weapons.
Nuclear fusion is used only in experimental installations.
Nuclear fusion takes place only in the core of the Sun, or any star. Extremely high energy (temperatures) are required to force atomic nuclei together. The fusion reaction releases heat energy, which continues the fusion of other nuclei.
The only place in which nuclear FUSION takes place is in stars (the sun included), and in the detonation of a hyndrogen bomb. If you are asking about nuclear FISSION (an entirely different process), restate the question.