Visible light is a form of electromagnetic radiation that is visible to the human eye. It has a wavelength of approximately 380 to 740 nanometers, and is composed of all the colors of the rainbow. Visible light is produced by stars, such as the Sun, and other sources like incandescent bulbs and fluorescent lights. It can also be reflected off objects in our environment, such as walls and floors. Visible light is used for many purposes, including communication, navigation, photography, and entertainment.