The Radiative Zone is a layer of the Sun located between the outer Convective Zone and the inner Core. In this zone, energy produced in the core moves outward primarily through radiation. Photons, or light particles, are absorbed and re-emitted by particles in the zone, a process that can take millions of years to transfer energy to the outer layers. This zone extends from about 0.2 to 0.7 solar radii from the center of the Sun. The temperature in the radiative zone ranges from approximately 7 million degrees Celsius near the core to about 2 million degrees Celsius at the outer edge.