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
This is similar in size to the icy particles in Saturn's rings, for example, and the ice is likely frozen around motes of interplanetary dust.
—
Keith Cooper, Space.com, 19 May 2025
Reflected sunlight from interplanetary dust around the sun between the orbits of Mars and Jupiter radiates across the (visible) optical spectrum and beyond.
—Jamie Carter, Forbes.com, 20 May 2025
Aerobraking for interplanetary missions A few Mars missions, including the Mars reconnaissance orbiter and the Mars Odyssey orbiter, have used aerobraking to reach their target orbits around the red planet.
—Piyush Mehta, The Conversation, 7 May 2025
The Launch Services Program brokers launch contracts for NASA's interplanetary probes, space telescopes, and climate research satellites.
—ArsTechnica, 24 Apr. 2025
See All Example Sentences for interplanetary
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Keith Cooper, Space.com, 19 May 2025
Reflected sunlight from interplanetary dust around the sun between the orbits of Mars and Jupiter radiates across the (visible) optical spectrum and beyond.
—Jamie Carter, Forbes.com, 20 May 2025
Aerobraking for interplanetary missions A few Mars missions, including the Mars reconnaissance orbiter and the Mars Odyssey orbiter, have used aerobraking to reach their target orbits around the red planet.
—Piyush Mehta, The Conversation, 7 May 2025
The Launch Services Program brokers launch contracts for NASA's interplanetary probes, space telescopes, and climate research satellites.
—ArsTechnica, 24 Apr. 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 17 Jun. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share