Comets are large amounts of dust and ice in space. They orbit quickly around suns, following
long, elliptical orbits. Since comets have such long orbits, we rarely see them on Earth. When we do, it is considered to
be very special. Comets have 3 major parts. The nucleus, coma, and the tail. The nucleus is the center, the coma is the dust
and ice around the nucleus, and the tail is the particles of ice and dust streaming off of it. In time, the comet will die,
becoming floating particles in space.
In our solar system, there are a large group of rocks called asteroids. There are so many of them
and they are so small that they can't be full fledged planets. In between Mars and Jupiter, there is a ring of asteroids known
as the asteroid belt. So far, scientists have discovered more than 10,000 asteroids, and there are still more to be found.
Meteoroids are large rocks in space. Sometimes, they enter Earth's atmosphere and burn up from friction,
becoming a meteor. Meteors can burn completely, or leave a crater in the ground. Bits of meteors found on the ground are known