Definition, Meaning & Synonyms

interplanetary space

noun

(in-ter-planet-uh-ree speys)

Definition

The physical space that exists between the planets within a solar system.

Examples

The Voyager probes were designed to travel through interplanetary space to gather data about the outer planets.
Interplanetary space is largely devoid of life, making it an interesting area for scientific exploration.
Understanding interplanetary space is crucial for the development of future space missions.

Meaning

Interplanetary space refers to the area in a solar system that lies between the orbits of the planets. It contains very low-density matter and is mostly a vacuum, which is different from the atmospheric conditions on planets.