meteoroid

• جسم صلب صغير يتحرك في النظام الشمسي، وهو أصغر من الكويكب عادة، ويظهر كشهاب عند دخوله الغلاف الجوي للأرض. ويُطلق عليه أيضاً الجسم النيزكي أو الحبيبة النيزكية قبل وصوله إلى سطح الأرض.

A small solid body moving in the solar system, typically smaller than an asteroid, that becomes visible as a meteor when it enters the Earth's atmosphere.

1. Small solar system objectB2formalscientific

   A small rocky or metallic body that travels through space within the solar system, and if it enters a planet's atmosphere it becomes a meteor.

   نيزك

   • A meteoroid typically becomes visible as a shooting star when it enters Earth's atmosphere.
   • Scientists classify meteoroids by size and composition to understand the solar system's formation.
   • The meteoroid stream from a comet can produce an annual meteor shower.
   • If a meteoroid survives its passage through the atmosphere and strikes the ground, it is called a meteorite.