Fusion power is a type of energy that is generated through the fusion of atomic nuclei. Synonyms for fusion power include thermonuclear power, nuclear fusion, and fusion energy. These terms can all be used interchangeably to describe the same process, which involves heating a hydrogen plasma to extremely high temperatures and pressures until the atomic nuclei collide and fuse together, releasing enormous amounts of energy in the process. While fusion power is still in the experimental stage, it has the potential to be a clean, safe, and virtually limitless source of energy for the future. Other related terms include cold fusion, which involves achieving fusion at lower temperatures, and magnetic confinement, which refers to the method of confining the fusion plasma in a magnetic field.