Flexi Says: Solar energy is energy emitted from the Sun or other stars and radiated in the form of electromagnetic energy, including visible light. Stars emit radiation because of nuclear fusion. A nuclear fusion reaction is so named because the nuclei (center) of atoms fuse (join) together in the process. In stars like our Sun, hydrogen atoms join together to create a helium atom. Solar energy that reaches Earth's surface is the source of energy for most living things and also the source of energy that drives weather.
