Welcome to the Astroids, Comets & Meteors Learning Section

ASTROIDS, COMETS & METEORS - A meteoroid is a small particle from a comet or asteroid. A meteoroid is significantly smaller than an asteroid, ranging from small grains to 1-meter wide. The visible streak of light from space debris is the result of heat as it enters a planet's atmosphere, and the glowing particles that it sheds in its wake is called a meteor, or colloquially a "shooting star" or "falling star". Many meteors appearing seconds or minutes apart, and appearing to originate from the same fixed point in the sky, are called a meteor shower. The root word meteor comes from the Greek meteōros, meaning "suspended in the air". Objects larger than several meters can explode in the air and create damage. If a meteoroid, comet or asteroid withstands ablation from its atmospheric entry and impacts with the ground, then it is called a meteorite. Around 15,000 tonnes of meteoroids, micrometeoroids and different forms of space dust enter Earth's atmosphere each year.

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