Payload Specialist Program

The Payload Specialist Program allows selected individuals, often scientists or experts related to a specific experiment or equipment, to participate in space missions. These specialists are trained to operate or monitor specialized payloads—like research instruments or experiments—during the flight. Their role is to ensure the success of specific scientific objectives. Unlike astronauts, Payload Specialists usually have focused roles related to their expertise and may participate in one or a few missions. This program helps maximize the scientific return from space missions by involving experts directly in the operation of specialized experiments.