A stock image shows the surface of the sun. Nuclear fusion requires temperatures of 27 million degrees F, which occurs at the sun's core. iStock / Getty Images Plus ...

The Sun has varying temperatures depending on the layer. Here is how hot the Sun's surface, core and corona are, plus how nuclear fusion works. $3,500 iPhone possible?

Nuclear fusion is the process of forcing ... and loss of its outer layers. For stars more massive than the sun — which will ... machines replicate processes that occur in the sun.

Nuclear fusion occurs when two light atomic nuclei combine to form a heavier nucleus, releasing vast amounts of energy. This reaction powers the sun and other stars, where extreme temperatures and ...

The amount of energy released in a nuclear fusion reaction can be many times that of a chemical reaction. Fusion is also carbon-free, which is why it is sometimes labeled as the “holy grail ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What ...

Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy. Fusion reactions take place in a state of matter called ...

Nuclear fusion is the merging of two light atomic nuclei into one heavier one. If it can be harnessed on Earth, it could generate clean, limitless energy.

Fusion, which powers stars like our sun, ... Nuclear fusion occurs when the nuclei of two atoms fuse together to create a larger atom, giving off massive amounts of energy in the process.

Creating this initial fusion reaction—and, most crucially, sustaining it—has been the work of nuclear physicists around the world for nearly a century.