The Carina-Sagittarius Arm is a major spiral arm of the Milky Way Galaxy. It is located between the Scutum-Centaurus Arm and the Perseus Arm. This arm contains a rich variety of stars, gas, and dust, making it an important region for star formation. Within the Carina-Sagittarius Arm, notable features include the Carina Nebula and the Sagittarius Star Cloud. These areas are home to many young, massive stars and are key sites for astronomical research. The arm plays a significant role in the overall structure and dynamics of our galaxy.