GEOGRAPHY Lecture 1: METEOROID,METEOR AND METEORITE- IMPORTANT FEATURES AND DIFFERENCES.
Document Summary
A meteoroid is any solid debris originating from asteroids, comets or other celestial object and floats through interplanetary space. A meteor is the streak of light that appears in the sky when a meteoroid enters the mesosphere at about 200 km at high speed and burns up because of the friction. A meteor is popularly termed as shooting star or. In some situations, meteor doesn"t burn-up completely and makes it way to the earth"s surface. The circular depression created on earth"s surface after the meteorite"s impact is called as a meteorite crater. Meteorite impacts are common in all planets and natural satellites of the solar system. The most conspicuous meteorite craters can be found on the surfaces of the moon and mercury, because they are geologically inactive due to negligible atmosphere. Largest meteorite crater: a meteorite crater in arizona (usa) is 1. 300 m deep is the largest crater in the world.
