// ORBITAL LOGISTICS AND PROPULSION TERM
Gravity Well
A gravity well is a conceptual model representing the gravitational pull of a massive object, like a planet or star, as a dip or well in the fabric of spacetime. The deeper the well, the stronger the gravity.
TECHNICAL DEFINITION
A conceptual representation of the gravitational potential around a massive celestial body, illustrating the energy required to escape its gravitational pull, often visualized as a dip in a 2D surface or a potential energy landscape.
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
- Gravitational potential well
- Potential well
- Gravity field
- Gravitational basin
USAGE NOTE
Escaping Earth's gravity well requires significant rocket propulsion.
DEVELOPERS
Organizations developing technology related to Gravity Well.
Develops and operates reusable launch vehicles like the Falcon 9 and Starship, designed to drastically lower the cost of escaping Earth's gravity well. Starship is specifically being created for interplanetary missions, enabling transport between the gravity wells of Earth, the Moon, and Mars.
A leader in interplanetary exploration, JPL specializes in designing complex spacecraft trajectories that utilize gravity assists, or 'slingshot maneuvers,' around planets. This technique exploits planetary gravity wells to accelerate spacecraft and reach distant solar system targets with minimal fuel.
Developing the New Glenn heavy-lift, reusable orbital rocket to carry payloads out of Earth's gravity well. The company is also creating the Blue Moon lunar lander, a vehicle designed to descend into and ascend from the Moon's gravity well to support a sustained human presence.
Provides launch services with its Electron rocket, lifting satellites out of Earth's gravity well into orbit. The company also operates the Photon spacecraft, an in-space bus that can maneuver payloads within Earth's gravitational field or send them on trajectories to the Moon and other planets.
Focuses on lunar exploration by developing and operating lunar landers. Their technology is centered on navigating from Earth orbit to the Moon and executing a precise, powered descent to safely land on the lunar surface, directly counteracting the Moon's gravity well.
Develops lunar landers, such as Peregrine and Griffin, and other space robotics. Their core mission is to deliver payloads for companies, governments, and universities to the Moon, requiring sophisticated systems to manage the journey between and descent into planetary gravity wells.
Builds and operates Orbital Transfer Vehicles (OTVs) which act as 'space tugs'. After being deployed by a larger rocket, their Vigoride vehicle uses its own propulsion system to move customer satellites to different orbital altitudes, effectively changing their position within Earth's gravity well.
A major launch service provider that launches critical government and commercial payloads. Their powerful upper stages, like the Centaur, are designed for high-energy missions that can deliver spacecraft to geosynchronous orbit or on escape trajectories out of Earth's gravity well towards other planets.