Last Updated
：2025/11/20
near-Earth object
（ plural ）
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(astronomy) A small Solar System body (ie. asteroid, comet, or large meteoroid) whose orbit brings it into proximity with Earth's orbit.
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near-Earth object
Scientists tracked a near-Earth object as it passed within the Moon's orbit last night.
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Scientists tracked a near-Earth object as it passed within the Moon's orbit last night.
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