InterMoon

Intermoon is a term used to describe concepts related to the space between moons orbiting a planet or the networks that could connect those moons. It is not an established term in mainstream astronomy, but it appears in speculative discussions about multi‑moon systems and in science fiction world‑building. The name is formed from the prefix inter-, meaning between, and moon.

In astronomy, “intermoon space” is used informally to refer to the region where the gravitational influences of neighboring moons interact. In such a context, researchers may consider orbital resonances, debris dynamics, and material exchange that can occur between moons. While the term intermoon itself is not standardized, the ideas connect to inter-satellite dynamics and to considerations for mission planning or exploration that involve trajectories through the space between moons.

In fiction, InterMoon often denotes a transport, communication, or governance network that spans a planet’s moons. It can describe infrastructure such as intermoon corridors, relay satellites, depots, or habitats, and is commonly used to explore themes of inter-satellite commerce, political organization, or coordinated exploration across multiple celestial bodies.

Etymology and usage notes: intermoon derives from inter- and moon, reflecting its focus on the space or systems between moons rather than on a single satellite. The term tends to appear in informal discussions, speculative papers, or fictional settings rather than formal scientific nomenclature.

See also: planetary rings, orbital resonance, multi-moon systems, space infrastructure, science fiction world-building.