fusion reactions

Stars' power source

Fusion reactions are nuclear reactions in which light atomic nuclei combine to form heavier nuclei, releasing enormous amounts of energy.

This is the process that powers stars, including the sun, where hydrogen atoms fuse into helium.

Scientists have long pursued controlled fusion as a potential clean energy source: The reactor achieved sustained fusion reactions for the first time.

Contrast with fission, which splits heavy atoms apart.

Related

thermonuclear · hydrogen bomb · tritium · cross-section · high temperature · quantum tunneling · star · energy release · high pressure · sun · sun's core · power plant · isotopes · helium · vacuum chamber · containment · chain · hydrogen

Opposites
nuclear process direction

fusion reactionsnuclear fission

Atomic core division

fission · atomic fission · splitting the atom · nuclear decay · radioactive decay

energy transformation type

fusion reactionschemical reactions

Processes changing substance composition

combustion · coal power

constructive vs. destructive atomic processes

fusion reactionsfission

Nuclear breakup releasing energy

splitting · dissociation · division · separation · fragmentation

Family

react, fuse, reaction, fusion, reactionary

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