// ORBITAL LOGISTICS AND PROPULSION TERM
Payload
The cargo or mission-specific equipment that a rocket or aircraft carries, such as satellites, instruments, or people.
TECHNICAL DEFINITION
Payload refers to the total mass of revenue-generating or mission-critical items, including satellites, scientific instruments, crew, or cargo, that an aerospace vehicle (e.g., launch vehicle, aircraft) is designed to transport to its intended destination or orbit.
BACKGROUND
Firefly Aerospace Blue Ghost, or simply Blue Ghost, is a class of lunar landers designed and manufactured by the American company Firefly Aerospace. Firefly builds and operates Blue Ghost landers to deliver small payloads to the surface of the Moon. The first Blue Ghost mission was launched in January, 2025. It successfully landed on the Moon on March 2, 2025. The landers are named after the firefly species Phausis reticulata, known as blue ghosts.
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- Cargo
- Mission payload
- Useful load
- Freight
USAGE NOTE
Maximizing payload capacity is a primary goal in launch vehicle design.
DEVELOPERS
Organizations developing technology related to Payload.
Develops and launches a wide range of payloads, including its own Starlink internet satellites, and provides launch services for commercial and government payloads on its Falcon rocket family.
Develops, funds, and manages numerous scientific, exploratory, and technology demonstration payloads for missions across the solar system and Earth orbit.
A leading manufacturer of satellites, spacecraft, and the complex instruments and components that serve as payloads for various telecommunications, Earth observation, and scientific missions.
Designs, develops, and builds advanced spacecraft and high-performance payloads for a variety of defense, civil, and commercial applications, including navigation, communications, and remote sensing.
A major player in space systems, developing and integrating sophisticated payloads for national security, scientific discovery, and commercial endeavors across various orbital platforms.
Operates the world's largest fleet of Earth observation satellites, where the primary payload consists of high-resolution imaging systems for daily global monitoring.
Specializes in advanced Earth intelligence and space infrastructure, including the development of high-resolution imaging payloads for its constellations of Earth observation satellites.
Provides dedicated launch services for small satellites and their payloads, and also develops its own satellite bus (Photon) designed to host and operate various customer payloads.
Coordinates European space activities, including the development, integration, and launch of scientific instruments and observation systems that function as payloads on various spacecraft.