Stellar core
A stellar core is the central region of a star, where nuclear fusion takes place.

Fusion reactants were components of a star's core. ()

Doctor Timicin's 2367 experiment to revitalize Beta Praxillus involved detonating modified photon torpedoes within the star's core. Though initially successful in achieving a stable core temperature, neutron migration eventually destabilized core density and led to the star going nova. ()

See also 
 Stellar core fragment

External link 
 
Astronomy