Angular momentum is a property of a rotating object that describes its tendency to keep spinning. It is a vector quantity that depends on both the rotational speed and the mass distribution of an object. In physics, angular momentum is conserved, meaning that the total angular momentum of a system remains constant unless acted upon by an external torque. Angular momentum plays a crucial role in many physical phenomena, including the motion of planets and stars, the behavior of spinning objects such as tops and gyroscopes, and the movement of particles at the quantum level. Research in angular momentum seeks to better understand its properties and consequences in various systems, as well as to apply this knowledge in fields such as engineering, astronomy, and quantum mechanics.