asteroid belt
noun
: the region of interplanetary space between the orbits of Mars and Jupiter in which most asteroids are found
Examples of asteroid belt in a Sentence
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Most asteroids are found in the asteroid belt between Mars and Jupiter, but some travel on paths that bring them closer to Earth — these are called near-Earth asteroids.
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Marley Malenfant, Austin American Statesman, 19 Feb. 2026
Like all but one of the newfound superfast rotators, the record-setting space rock, called 2025 MN45, resides in the main asteroid belt between Mars and Jupiter.
—Mike Wall, Space.com, 8 Jan. 2026
Objects in the main asteroid belt—located between Mars and Jupiter—must rotate completely in 2.2 hours to avoid fragmentation.
—Laura Baisas, Popular Science, 8 Jan. 2026
Most reside in the main asteroid belt between the orbits of Mars and Jupiter.
—Eric Lagatta, AZCentral.com, 12 Dec. 2025
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Marley Malenfant, Austin American Statesman, 19 Feb. 2026
Like all but one of the newfound superfast rotators, the record-setting space rock, called 2025 MN45, resides in the main asteroid belt between Mars and Jupiter.
—Mike Wall, Space.com, 8 Jan. 2026
Objects in the main asteroid belt—located between Mars and Jupiter—must rotate completely in 2.2 hours to avoid fragmentation.
—Laura Baisas, Popular Science, 8 Jan. 2026
Most reside in the main asteroid belt between the orbits of Mars and Jupiter.
—Eric Lagatta, AZCentral.com, 12 Dec. 2025
See All Example Sentences for asteroid belt
Cite this Entry
“Asteroid belt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/asteroid%20belt. Accessed 25 Feb. 2026.
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