Cosmic dust consists of tiny particles found throughout space, primarily made up of elements like carbon, silicon, and iron. These particles are remnants from the formation of stars and planets, as well as the remains of comets and asteroids. Cosmic dust plays a crucial role in the universe, contributing to the formation of new celestial bodies and influencing the chemical composition of galaxies. In addition to its role in star formation, cosmic dust can also affect the light from distant stars and galaxies. When light passes through clouds of cosmic dust, it can be absorbed or scattered, making objects appear dimmer or redder. This phenomenon is important for astronomers studying the universe, as it helps them understand the distribution of matter in space and the evolution of galaxies.