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
Future spacecraft will need to make autonomous choices during long interplanetary journeys where communication is slow or impossible.
—
Neetika Walter, Interesting Engineering, 7 Nov. 2025
Both are betting big that interplanetary travel will happen in their lifetime, and now, one of Musk’s closest allies could soon lead NASA itself.
—Preston Fore, Fortune, 6 Nov. 2025
These vast eruptions hurl immense clouds of magnetized plasma from the sun's corona into interplanetary space, sometimes at millions of miles per hour.
—Kenna Hughes-Castleberry, Space.com, 29 Oct. 2025
Gigantic magnetic bubbles also break free from the Sun as the solar magnetic field reconfigures, launching up to fifty billion tons of plasma into interplanetary space.
—Literary Hub, 27 Oct. 2025
See All Example Sentences for interplanetary
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Neetika Walter, Interesting Engineering, 7 Nov. 2025
Both are betting big that interplanetary travel will happen in their lifetime, and now, one of Musk’s closest allies could soon lead NASA itself.
—Preston Fore, Fortune, 6 Nov. 2025
These vast eruptions hurl immense clouds of magnetized plasma from the sun's corona into interplanetary space, sometimes at millions of miles per hour.
—Kenna Hughes-Castleberry, Space.com, 29 Oct. 2025
Gigantic magnetic bubbles also break free from the Sun as the solar magnetic field reconfigures, launching up to fifty billion tons of plasma into interplanetary space.
—Literary Hub, 27 Oct. 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 8 Nov. 2025.
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