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
Recent Examples on the Web
More recently, there is the claim for the detection of a biosignature gas, dimethyl sulfide, in the atmosphere of an exoplanet called K2-18b.
—
Keith Cooper, Space.com, 1 Oct. 2025
Astronomer David Kipping has built a career not just at the cutting edge of exoplanet research but also at the forefront of science communication.
—Adam Frank, Big Think, 25 Sep. 2025
Today's talkers Astronomers have found more than 6,000 exoplanets.
—Nicole Fallert, USA Today, 23 Sep. 2025
Astronomers are studying an exoplanet about 40 light-years away from Earth that could be habitable.
—Alexandra Banner, CNN Money, 19 Sep. 2025
See All Example Sentences for exoplanet
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, 1 Oct. 2025
Astronomer David Kipping has built a career not just at the cutting edge of exoplanet research but also at the forefront of science communication.
—Adam Frank, Big Think, 25 Sep. 2025
Today's talkers Astronomers have found more than 6,000 exoplanets.
—Nicole Fallert, USA Today, 23 Sep. 2025
Astronomers are studying an exoplanet about 40 light-years away from Earth that could be habitable.
—Alexandra Banner, CNN Money, 19 Sep. 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 4 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share