• Nuclear Fission:

The process where heavy atoms are split into smaller, lighter atoms. This releases energy.

  • Nuclear Fission:

The process where lighter atoms are forced to join together to make heavier atoms. This releases energy.

  • Radioactive Decay:

Within the core of the Earth, radioactive isotopes of elements such as uranium, thorium and potassium provide a large proportion of the heat within the Earth through radioactive decay.