A dwarf star is a small and relatively low-mass star that has reached a stable phase in its life cycle. These stars can vary in size and temperature, but they are generally much smaller than larger stars like giant stars. Dwarf stars include several types, such as red dwarfs, which are the most common type in the universe, and white dwarfs, which are remnants of stars that have exhausted their nuclear fuel. Dwarf stars are important in the study of stellar evolution and the formation of galaxies. They can provide insights into the life cycles of stars and the chemical processes that occur in the universe. Understanding dwarf stars helps astronomers learn more about the conditions necessary for planetary systems and the potential for life beyond Earth.