The image below gives a basic overview of the Sun's parts. The three major interior zones are the core (the innermost part of the Sun where energy is generated by nuclear reactions), the radiative zone (where energy travels outward by radiation through about 70% of the interior of the Sun from the core out), and the convection zone (in which convection currents circulate the Sun's energy to the surface). The flare, sunspots and photosphere, chromosphere, and the prominence are all clipped from actual Solar and Heliospheric Observatory (SOHO) images of the Sun.