Gravitational Field between Two Planets
A field is a region under the influence of some physical agencies such as mass, charge, magnetic dipole. A gravitational field is an example of a force field: a force that interacts with a body without contact.
A gravitational field is set-up around an object in space and if another object falls in the field of another object, there is always an interaction of forces with each other e.g. the earth exerts a force on a falling object and the resultant force is always in the direction of bigger object
The attractive force increases as the object move towards each other. Therefore,
A gravitational field is a space or region surrounding a mass where the gravitational force of the mass is exerted or felt oh other masses.