👉 A flare, also known as a light or signal, is a type of electromagnetic radiation that can be used for various purposes such as communication, navigation, and entertainment. Flares are usually emitted by satellites, balloons, and other objects in orbit, and they emit a high-frequency electromagnetic wave that travels at the speed of light. Flares are often used to communicate with people on Earth or from space, providing visual information and signals to those who might not be able to see the object being broadcast.