The Big Freeze, a scenario in cosmology, suggests that the universe will continue to expand indefinitely due to dark energy and the cosmological constant. As the universe expands, galaxies will drift apart, leading to a colder, darker cosmos over trillions of years. Stars will eventually burn out, and new star formation will cease, resulting in a universe filled with dead stars and black holes. This scenario is largely speculative, and further detailed discussions can be found in dedicated cosmology forums. Understanding the Big Freeze requires a grasp of complex concepts, and resources like Wikipedia can provide foundational knowledge.