Wiktionary
multiplanet
a. Involving multiple planets
Usage examples of "multiplanet".
Besides being a multiplanet classed shot he was one of the strongest men on a team of very strong men.
By 2103, seven mergers and acquisitions later, he was secure as an executive director on the board of Farndale Engineering, one of the new multiplanet colossi that had prospered and expanded in parallel with phase one space.
The first voyage of men and women to Mars is the key step in transforming us into a multiplanet species.