interstellar
adjective
in·ter·stel·lar
ˌin-tər-ˈste-lər 
: located, taking place, or traveling among the stars especially of the Milky Way galaxy
Examples of interstellar in a Sentence
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Add its orbital motion to its slingshot speed and this device should get above the 26 miles (42 kilometers) per second required to escape the solar system and enter interstellar space.
—
Keith Cooper, Space.com, 8 Sep. 2025
In 2012, Voyager 1 became the first spacecraft to reach interstellar space, followed in 2018 by Voyager 2, according to NASA.
—Eric Lagatta, USA Today, 8 Sep. 2025
None of the government’s disclosures demonstrated that Earth had welcomed interstellar house guests.
—Matthew Hutson, New Yorker, 7 Sep. 2025
Astronomers believe this record-breaking speed is the result of countless gravitational encounters during its interstellar voyage.
—Jamie Carter, Forbes.com, 13 Aug. 2025
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Keith Cooper, Space.com, 8 Sep. 2025
In 2012, Voyager 1 became the first spacecraft to reach interstellar space, followed in 2018 by Voyager 2, according to NASA.
—Eric Lagatta, USA Today, 8 Sep. 2025
None of the government’s disclosures demonstrated that Earth had welcomed interstellar house guests.
—Matthew Hutson, New Yorker, 7 Sep. 2025
Astronomers believe this record-breaking speed is the result of countless gravitational encounters during its interstellar voyage.
—Jamie Carter, Forbes.com, 13 Aug. 2025
See All Example Sentences for interstellar
Cite this Entry
“Interstellar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstellar. Accessed 9 Sep. 2025.
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interstellar
adjective
in·ter·stel·lar
ˌint-ər-ˈstel-ər
: located or taking place among the stars
interstellar space
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