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  1. Meteoroid - Wikipedia

    Some meteoroids are fragments from bodies such as Mars or the Moon, that have been thrown into space by an impact. Meteoroids travel around the Sun in a variety of orbits and at various velocities. …

  2. Meteors and Meteorites: Facts - NASA Science

    Feb 14, 2025 · Meteoroids are space rocks that range in size from dust grains to small asteroids. When meteoroids enter Earth’s atmosphere, or that of another planet, at high speed and burn up, they’re …

  3. Meteoroid - National Geographic Society

    Apr 4, 2024 · Meteoroids are lumps of rock or iron that orbit the sun, just as planets, asteroids, and comets do. Meteoroids, especially the tiny particles called micrometeoroids, are extremely common …

  4. What’s the Difference Between a Meteoroid, a Meteor, and a …

    Most meteoroids that enter the atmosphere burn up completely as meteors. In some cases, however, the meteoroid does not completely burn up, and the object actually makes it to Earth’s surface. The …

  5. Meteoroid – Definition & Detailed Explanation - Sentinel Mission

    Sep 20, 2025 · Meteoroids are often remnants of asteroids or comets that have broken apart due to collisions or gravitational forces. As they travel through space, meteoroids can enter Earth’s …

  6. All About Meteors, Meteoroids, Fireballs, & Meteorites

    What are Meteoroids? The streak that we call a meteor is a trail of glowing vapor produced when a small particle of space debris enters Earth's atmosphere. These particles of space debris are collectively …

  7. Know the Differences Between Meteors, Meteoroids, Meteorites, …

    May 19, 2025 · These pieces of debris are only called meteoroids when they're traveling through space—they become meteors when they burn up in our atmosphere, or meteorites if they make it …

  8. Meteoroids: News, features and articles | Live Science

    Dec 19, 2025 · Meteoroids are tiny asteroids or bits of comets that become meteors when they burn up in a planet's atmosphere, and meteorites when they strike the surface intact.

  9. StarChild: Meteoroids - NASA

    Most meteoroids are about the size of a pebble. When one of these pieces of debris enters the Earth's atmosphere, friction between the debris and atmospheric gases heats it to the point that it glows and …

  10. 9.8: Meteoroids, Meteors, and Meteorites - Physics LibreTexts

    Three terms that are often mistakenly used interchangeably are meteoroids, meteors, and meteorites. Meteoroids are materials orbiting in space and are smaller than asteroids.