// ORBITAL LOGISTICS AND PROPULSION TERM
Escape Velocity
The minimum speed an object needs to break free from the gravitational pull of a celestial body without further propulsion. If you throw something up faster than this, it won't fall back down.
TECHNICAL DEFINITION
Escape velocity is the minimum speed an object must attain to overcome the gravitational potential energy of a celestial body (e.g., Earth, Moon) and achieve an open trajectory, preventing its return.
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
- Escape speed
- Gravitational escape
- Breakout velocity
USAGE NOTE
Achieving escape velocity is critical for interplanetary missions to leave Earth's gravitational influence.
DEVELOPERS
Organizations developing technology related to Escape Velocity.
Develops and manufactures advanced rockets and spacecraft, including the Falcon family of launch vehicles and Starship, designed for orbital launches and deep-space missions, directly enabling the achievement of escape velocity.
Focuses on developing reusable launch vehicles and space systems, such as the New Glenn rocket, to provide affordable access to space and facilitate future missions requiring escape velocity.
A U.S. government agency responsible for the civilian space program, including developing the Space Launch System (SLS) and various spacecraft for deep-space exploration, which inherently involves achieving escape velocity.
A joint venture between Lockheed Martin and Boeing, providing reliable and cost-effective launch services for government and commercial customers using Atlas V and Vulcan Centaur rockets, capable of launching payloads beyond Earth's orbit.
A European company specializing in the design, development, and manufacture of civil and military launchers, including the Ariane 5 and the future Ariane 6, essential for Europe's independent access to space and deep-space missions.
Develops and operates the Electron small-lift orbital launch vehicle and is developing the Neutron medium-lift rocket, expanding capabilities for delivering payloads to various orbits and beyond, requiring precise management of velocity.
A major defense and aerospace company that develops and manufactures space launch vehicles, propulsion systems, and spacecraft, including the Antares rocket and solid rocket boosters for NASA's Space Launch System, contributing to capabilities needed for escape velocity.