The mass of the products of a fusion reaction is smaller than the mass of its reactants. The difference or "missing mass" is converted into energy in accordance with Einstein’s equation E=mc². Because ...

"A fusion device must achieve stable operation ... Scientists are nonetheless hopeful that future reactors could flip that equation on its head. The super-expensive International Thermonuclear ...

Nuclear energy harnesses Einstein's famous equation, E = mc², where energy is derived from the "mass defect"—the difference in mass before and after nuclear reactions. In both fusion and ...