A meteoroid is a small rocky or metallic body in outer space, ranging in size from grains to objects up to a meter wide. They are distinguished as objects significantly smaller than asteroids. Objects smaller than meteoroids are classified as micrometeoroids and interplanetary dust. Meteoroids come from various sources, including the asteroid belt, comets, and fragments from bodies such as Mars or the Moon that have been thrown into space by an impact. When a meteoroid enters Earths atmosphere, it vaporizes and turns into a meteor, creating a streak of light in the sky. If a meteoroid survives its trip through Earths atmosphere and lands on the Earths surface, it is called a meteorite.
In summary, a meteoroid is a small rocky or metallic body in outer space that can range in size from grains to objects up to a meter wide. When a meteoroid enters Earths atmosphere, it becomes a meteor, and if it survives and lands on Earths surface, it is called a meteorite.
