interplanetary
adjective
in·ter·plan·e·tary
ˌin-tər-ˈpla-nə-ˌter-ē 
: existing, carried on, or operating between planets
interplanetary dust
an interplanetary flight
interplanetary spacecraft
Examples of interplanetary in a Sentence
Recent Examples on the Web
To make interplanetary travel faster, safer and more efficient, scientists need breakthroughs in propulsion technology.
—
Preeti Nair, Space.com, 7 Dec. 2025
From the invention of the wheel to the launch of interplanetary missions, engineering has always been the driving force behind human progress.
—Atharva Gosavi, Interesting Engineering, 19 Nov. 2025
But becoming an interplanetary species is an enormous challenge.
—Big Think, 12 Nov. 2025
These satellites monitor the solar wind and interplanetary magnetic field, enabling accurate aurora forecasts with a lead time of 15 to 45 minutes.
—Amanda Castro, MSNBC Newsweek, 12 Nov. 2025
See All Example Sentences for interplanetary
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Preeti Nair, Space.com, 7 Dec. 2025
From the invention of the wheel to the launch of interplanetary missions, engineering has always been the driving force behind human progress.
—Atharva Gosavi, Interesting Engineering, 19 Nov. 2025
But becoming an interplanetary species is an enormous challenge.
—Big Think, 12 Nov. 2025
These satellites monitor the solar wind and interplanetary magnetic field, enabling accurate aurora forecasts with a lead time of 15 to 45 minutes.
—Amanda Castro, MSNBC Newsweek, 12 Nov. 2025
See All Example Sentences for interplanetary
Cite this Entry
“Interplanetary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interplanetary. Accessed 18 Dec. 2025.
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