Meteorites are chunks of materials that usually break off from the much bigger asteroids or comets. Their parent object before it enters the atmosphere of a planet is sometimes referred in English as a meteoroid.
Frequently Asked Questionsedit
What is the difference between a meteor, meteoroid, and meteorites?edit
The chunk of rock that breaks off from an asteroid or comet of a significant size is a meteoroid. When this meteoroid enters a planet's atmosphere, it becomes a meteor. When the meteor survives the air resistance of the atmosphere and successfully hits the surface of the planet, then it is a meteorite.