: a band of small celestial bodies beyond the orbit of Neptune from which many short-period comets are believed to originate compare oort cloud
Examples of Kuiper Belt in a Sentence
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Just last year, scientists announced the news that New Horizons found the Kuiper Belt—a vast outer zone of hundreds of thousands of small, icy worlds beyond the orbit of Neptune—might extend much farther out than previously thought.
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Stephen Clark, ArsTechnica, 12 Sep. 2025
The Case For Planet Y Simulations show that a world with a mass between Mercury and Earth, orbiting between 100 and 200 AU from the sun and tilted at least 10 degrees, could nudge the Kuiper Belt's plane into a tilt.
—Jamie Carter, Forbes.com, 11 Sep. 2025
Stern is perhaps best known for being the principal investigator of NASA's New Horizons mission, which was the first to fly by Pluto in 2015 before venturing on to do studies of other small bodies in the Kuiper Belt.
—Elizabeth Howell, Space.com, 9 Sep. 2025
These primitive bodies have been preserved in the cold outer reaches of the solar system—mainly in the Oort Cloud or Kuiper Belt—acting as time capsules containing some of the earliest material from the Sun's formation.
—Amanda Castro
hannah Parry
anna Commander, MSNBC Newsweek, 12 Aug. 2025
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Stephen Clark, ArsTechnica, 12 Sep. 2025
The Case For Planet Y Simulations show that a world with a mass between Mercury and Earth, orbiting between 100 and 200 AU from the sun and tilted at least 10 degrees, could nudge the Kuiper Belt's plane into a tilt.
—Jamie Carter, Forbes.com, 11 Sep. 2025
Stern is perhaps best known for being the principal investigator of NASA's New Horizons mission, which was the first to fly by Pluto in 2015 before venturing on to do studies of other small bodies in the Kuiper Belt.
—Elizabeth Howell, Space.com, 9 Sep. 2025
These primitive bodies have been preserved in the cold outer reaches of the solar system—mainly in the Oort Cloud or Kuiper Belt—acting as time capsules containing some of the earliest material from the Sun's formation.
—Amanda Castro
hannah Parry
anna Commander, MSNBC Newsweek, 12 Aug. 2025
See All Example Sentences for Kuiper Belt
Cite this Entry
“Kuiper Belt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Kuiper%20Belt. Accessed 17 Sep. 2025.
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