Cosmic filaments are vast, thread-like structures in the universe that form the backbone of the cosmic web. They are made up of dark matter and gas, connecting clusters of galaxies and influencing their distribution. These filaments can stretch for millions of light-years and are crucial for understanding the large-scale structure of the universe. The formation of cosmic filaments is driven by gravitational forces, which pull matter together over time. Within these filaments, galaxies and galaxy clusters are often found, making them essential for studying the evolution of the universe and the behavior of dark matter and galaxies.