Radiative transfer is the process by which energy in the form of radiation is emitted, absorbed, and scattered in a medium. This phenomenon is crucial in understanding how energy moves through different environments, such as the atmosphere or interstellar space. It plays a significant role in various fields, including meteorology and climate science, as it helps explain how sunlight interacts with the Earth's atmosphere. In astrophysics, radiative transfer is essential for studying celestial bodies and their atmospheres. It allows scientists to model how light from stars and galaxies is affected by the materials it passes through, providing insights into their composition and behavior. Understanding radiative transfer is vital for accurate predictions in both terrestrial and astronomical contexts.