![]() ![]() ![]() If a meteoroid, comet or asteroid or a piece thereof withstands ablation from its atmospheric entry and impacts with the ground, then it is called a meteorite. Incoming objects larger than several meters can explode in the air. A series of many meteors appearing seconds or minutes apart, and appearing to originate from the same fixed point in the sky, is called a meteor shower. meteoroid noun C uk / mi.ti.rd / us / mi.ti. This phenomenon is called a meteor, or colloquially a "shooting star" or "falling star". A meteoroid is significantly smaller than an asteroid, ranging from small grains or particles to the size of large boulders. When such an object enters the Earth's atmosphere at a speed typically in excess of 20 km/s, aerodynamic heating produces a streak of light, both from the glowing object and the trail of glowing particles that it leaves in its wake. meteoroid m t-roid A small, rocky or metallic body revolving in interplanetary space around the Sun. Most are fragments from comets or asteroids, while others are collision impact debris ejected from bodies such as the Moon or Mars. Smaller objects than this are classified as micrometeoroids or space dust. Meteoroids are significantly smaller than asteroids, and range in size from small grains to 1 meter-wide objects.
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