Reentry procedures refer to the steps and protocols followed when a spacecraft returns to Earth from space. These procedures ensure the safe descent and landing of the vehicle, which involves managing speed, altitude, and trajectory. Key components include heat shield deployment, parachute activation, and communication with ground control. During reentry, the spacecraft experiences intense heat and pressure, requiring careful calculations to avoid damage. Teams on the ground monitor the spacecraft's systems and trajectory, ready to assist with landing operations. Successful reentry is crucial for the safety of astronauts and the integrity of the spacecraft.