A comet is an object in space made of ice, dust, and when it gets close to the sun a tail of gas and dust particles form. It's speed in normally around 2,000 miles per hour but when it gets close to the sun it gets up to 100,000 miles per hour. That's really fast! The parts are nucleus, coma, and the tail.
Now we are going the explain the differences of meteoroids, meteors, and meteorites. One a meteoroid is a small body moving in our solar system. A meteor is when meteoroid enters the earth's atmosphere. A meteorite is when meteor hits the earth's surface.
Now we are going to talk about something awesome! Meteor showers! A meteor shower is a number of meteors that appear to radiate from one point in the sky at certain date each year.
Asteroids are big pieces of rock that are in the Asteroid Belt between Mars and Jupiter. Asteroids are have some differences from comets though. Asteroids are made up of Metal and Rocky material, while comets are made up of ice and dust. Another different thing is that Asteroids form much closer to sun than comets because if comets form close to the sun the ice that they made up of would have melted. Also another different thing is that comets have tails and asteroids do not. Comets have longer orbital periods then asteroids.
Why study comets and asteroids you ask? Well scientists study them understand more about the origin of our solar system because asteroids are younger than sun and the same age as the planets and comets are the same age as the crest of our solar system so they can be good use for information.
Fun Facts
1) Scientists have found over 90,000 asteroids which are rocky remains from formation of the solar system.
2) Comets are some of least changed objects in space.
3) There are trillions of comets out there in space.
4) 750,000 asteroids in the asteroid belt.
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