A spectroscope is an instrument used to analyze light by separating it into its component colors or wavelengths. This process helps scientists understand the properties of light emitted or absorbed by different materials. By examining the spectrum produced, researchers can identify the chemical composition of stars, gases, and other substances. Spectroscopes are commonly used in various fields, including astronomy, chemistry, and physics. They can be simple devices, like a prism that splits light, or more complex systems that use diffraction gratings. The information gathered from spectroscopes is crucial for studying everything from elements in the universe to the quality of materials on Earth.