Friday, November 25, 2011

Meteoroids, Meteors and Meteorites



     

       


A meteoroid is a small rock or particle of debris in our solar system. They range in size from dust to around 10 metres in diameter (larger objects are usually referred to as asteroids).

A meteoroid that burns up as it passes through the Earth’s atmosphere is known as a meteor. If you’ve ever looked up at the sky at night and seen a streak of light or ‘shooting star’ what you are actually seeing is a meteor.

A meteoroid that survives falling through the Earth’s atmosphere and colliding with the Earth’s surface is known as a meteorite.

The fastest meteoroids travel through the solar system at a speed of around 42 kilometres per second (26 miles per second).

A small percentage of meteoroids fly on a path that goes into the Earth’s atmosphere and then back out again, they are known as Earth grazing fireballs.

1 comment:

  1. I also confused with the meteoroids, meteors and meteorites before, but I'm very clear with the difference between of them now! How about you?

    ReplyDelete