
What is Fusion, and Why Is It So Difficult to Achieve?
Simply put, nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy.
What is Fusion? - ITER
In the extreme density and temperature of the stars, including our Sun, fusion occurs. Fusion is the energy source of the Universe, occuring in the core of the Sun and stars. It is through …
Nuclear fusion - Wikipedia
Nuclear fusion is a reaction in which two or more atomic nuclei combine to form a larger nucleus. The difference in mass between the reactants and products is manifested as either the release …
Nuclear fusion | Development, Processes, Equations, & Facts
Nov 9, 2025 · Nuclear fusion, process by which nuclear reactions between light elements form heavier elements. In cases where interacting nuclei belong to elements with low atomic …
Fusion Energy - Department of Energy
Nov 28, 2025 · Fusion is a potential source of on-demand, safe, and abundant energy with zero carbon emissions.
What Is Nuclear Fusion? Definition and Examples
Apr 30, 2023 · Nuclear fusion is a type of nuclear reaction where two or more atomic nuclei combine and form one or more heavier nuclei. The process of fusion forms many of the …
What is nuclear fusion? - Live Science
Dec 13, 2022 · 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.
Nuclear Fusion vs Fission: A Physicist Explains The Difference
Fission involves splitting big heavy atoms into smaller, lighter ones. Fusion involves combining little atoms together into bigger ones. Both processes release a lot of energy.
What is nuclear fusion? | Space
Sep 21, 2022 · Nuclear fusion is the process of forcing together two light atomic nuclei and creating a heavier one, releasing massive amounts of energy.
What is nuclear fusion and why is it such a big deal? - CBC.ca
Dec 13, 2022 · Nuclear fusion is a process where two lighter elements combine to make a heavier element. It's the same process that powers our sun, where protons of hydrogen atoms collide …