exoplanet
noun
exo·plan·et
ˈek-sō-ˌpla-nət 
ˌek-sō-ˈpla-
: a planet orbiting a star that is not our sun
Examples of exoplanet in a Sentence
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The comet is thought to have been ejected from a giant exoplanet and traversed the Milky Way for billions of years.
—
Devika Rao, TheWeek, 31 Dec. 2025
Scientists got the best evidence yet for past life on Mars, discovered an interstellar comet zooming through our solar system, found clues of possible nearby exoplanets, and much more.
—Keith Cooper, Space.com, 28 Dec. 2025
The International Astronomical Union considers the lemon planet an exoplanet.
—Adam Harrington, CBS News, 23 Dec. 2025
With Fomalhaut’s collisions confirmed, astrophysicists can start utilizing the data to better inform planetary models, as well as more accurately identify potential exoplanets.
—Andrew Paul, Popular Science, 18 Dec. 2025
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Devika Rao, TheWeek, 31 Dec. 2025
Scientists got the best evidence yet for past life on Mars, discovered an interstellar comet zooming through our solar system, found clues of possible nearby exoplanets, and much more.
—Keith Cooper, Space.com, 28 Dec. 2025
The International Astronomical Union considers the lemon planet an exoplanet.
—Adam Harrington, CBS News, 23 Dec. 2025
With Fomalhaut’s collisions confirmed, astrophysicists can start utilizing the data to better inform planetary models, as well as more accurately identify potential exoplanets.
—Andrew Paul, Popular Science, 18 Dec. 2025
See All Example Sentences for exoplanet
Cite this Entry
“Exoplanet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exoplanet. Accessed 1 Jan. 2026.
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