* Science: "The Hubble Telescope has captured stunning images of interplanetary dust clouds swirling around distant stars."
* Fiction: "The spaceship zoomed through the vast emptiness of space, embarking on an interplanetary voyage to a distant galaxy."
* Exploration: "Scientists are working on new technologies to enable long-duration interplanetary travel, potentially leading to human missions to Mars."
* Metaphor: "The internet has created an interplanetary network of communication, connecting people across the globe."
* Informal: "My friend's dog is so hyperactive, it's like a tiny, furry, interplanetary rocket."
You can also use "interplanetary" as an adjective to describe something that is related to or involving planets:
* "The research team studied the effects of interplanetary radiation on spacecraft."
* "The museum featured an exhibit on interplanetary exploration, showcasing historical artifacts from space missions."