Cosmic Origins Spectrograph

The Cosmic Origins Spectrograph is a scientific instrument installed on the Hubble Space Telescope that studies the universe in ultraviolet light. It analyzes the light from stars, galaxies, and interstellar matter to understand their composition, temperature, motion, and how they interact. By examining specific wavelengths of ultraviolet light absorbed or emitted by cosmic objects, it provides detailed information about their physical properties and processes. This helps astronomers learn about the origins of stars and galaxies, the behavior of interstellar gas, and the evolution of the universe itself.