// ORBITAL LOGISTICS AND PROPULSION TERM
Vacuum
A space completely devoid of matter, like outer space, where there is no air resistance.
TECHNICAL DEFINITION
Vacuum refers to a region of space entirely or nearly devoid of matter, characterized by extremely low pressure, which is the operational environment for spacecraft and satellites, influencing material behavior, heat transfer, and propulsion system design.
BACKGROUND
Outer space, or simply space, is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- Outer space
- Empty space
- Void
- Near-vacuum
USAGE NOTE
Operating in a vacuum presents challenges for thermal management and lubrication.
DEVELOPERS
Organizations developing technology related to Vacuum.
A leading global provider of vacuum solutions, offering a comprehensive range of vacuum pumps, instruments, and systems for various applications including space simulation and aerospace research and development.
Develops and supplies a full range of vacuum components, standardized and complex vacuum systems, and services for manufacturing processes, analytical instruments, and research, including applications critical to space simulation.
A global leader in vacuum technology, providing highly engineered vacuum and abatement solutions for various industries, including advanced research, space simulation, and manufacturing of space-related components.
A global developer, manufacturer, and supplier of high-end vacuum valves and all-metal gate valves, crucial components for ultra-high vacuum environments used in space simulation chambers and advanced scientific instruments.
Operates some of the world's largest thermal vacuum chambers for testing spacecraft, instruments, and components under conditions simulating the vacuum and extreme temperatures of space.
Maintains advanced test facilities, including large space simulators and thermal vacuum chambers at ESTEC, to rigorously test spacecraft and components for their ability to withstand the harsh vacuum environment of space.
Designs, manufactures, and launches advanced rockets and spacecraft. Their engineering and testing involve extensive consideration of vacuum conditions for propulsion systems, satellite deployment, and space-based operations.
A major defense and aerospace contractor developing and building a wide range of satellites, deep-space probes, and human spaceflight systems, requiring deep expertise and testing in high-vacuum environments.