Capacity

TECHNICAL DEFINITION

Capacity, in aerospace, refers to the maximum payload mass or volume a launch vehicle can deliver to a specific orbit, or the total data throughput a satellite communication system can support, often measured in bits per second or equivalent service units.

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.

SYNONYMS & ALIASES

• Payload Capacity
• Throughput (Comms)
• Carrying Capability
• Data Volume

USAGE NOTE

Increasing launch capacity and satellite communication capacity are key drivers of growth in the space economy.

DEVELOPERS

Organizations developing technology related to Capacity.

• SpaceX

  Develops advanced rockets (Falcon 9, Starship) and spacecraft (Dragon) to provide high-volume launch capacity for satellites and humans, significantly increasing access to space and payload delivery capabilities. Also manufactures and operates the Starlink satellite constellation, vastly expanding global internet communication capacity.

• Blue Origin

  Developing a range of launch vehicles including New Glenn, a heavy-lift orbital rocket, to provide substantial capacity for sending payloads and potentially humans to Earth orbit, the Moon, and beyond. Also developing lunar landers to increase payload delivery capacity to the lunar surface.

• United Launch Alliance (ULA)

  A leading provider of launch services for U.S. government missions, developing the Vulcan Centaur rocket to offer increased lift capacity and mission flexibility for critical national security, civil, and commercial payloads.

• Arianespace

  Operates a family of launch vehicles (Ariane, Soyuz, Vega) to provide reliable launch capacity for a wide range of satellites, ensuring European independent access to space and developing Ariane 6 for increased capacity and flexibility.

• Rocket Lab

  Provides dedicated small satellite launch services with its Electron rocket, significantly increasing responsive and tailored launch capacity for smaller payloads. Currently developing the Neutron rocket to expand its offering to medium-lift capacity.

• Maxar Technologies

  A leader in satellite manufacturing, geospatial intelligence, and space robotics, contributing to the capacity of Earth observation, communication, and on-orbit servicing missions. Their satellite platforms provide critical infrastructure for various space applications.

• Planet Labs

  Operates the world's largest fleet of Earth observation satellites, providing unprecedented daily imaging capacity of the entire Earth's landmass. This constellation delivers vast amounts of data for diverse applications like environmental monitoring and intelligence.

• Amazon (Project Kuiper)

  Building a massive constellation of over 3,200 low Earth orbit (LEO) satellites to provide global broadband internet. This project involves immense satellite manufacturing, launch, and operational capacity to deploy and manage such a large-scale communication network.

• Northrop Grumman

  Provides a wide range of aerospace products and services including launch vehicles (Antares), spacecraft (Cygnus cargo vehicle for ISS), and satellite components, contributing to the overall launch, cargo delivery, and operational capacity in space.

• NASA

  Develops and utilizes significant space infrastructure, including the Space Launch System (SLS) for heavy-lift launch capacity and the International Space Station (ISS) for on-orbit research and habitation capacity, supporting human deep-space exploration and scientific endeavors.