Solar System | Foreign asteroids and dwarf planets

If we thought that our tour of the solar system ends at the Neptune or Pluto, we would have put ourselves in a very tight space, and we have wronged our sun, with its strength and did not appreciate what the distances that separate the stars from each other.

The solar system planets very close relative of the sun if we compare it with the wide space that among the stars, and as we know that Pluto revolves around the sun in an estimated forty times the Earth away from the sun any Forty astronomical units , though a moderate distance, the star closest to our solar system ( star Alpha Qntrios) away from us 260,000 times the distance between Earth and the sun, between us and the star so vast desert and wide massive wide space between the stars.

More comets, such as comet Hale Bob Hall Bopp and Hyakutake Heikkotik, to Ouhzawa and they were relatively close, Bob Hull was too far toward the sun than any other comet so far, and it was far from the buyer.

But those comets, it must have come from somewhere where those comets become very cool (It evaporates because of the speed of the impact of the sun) and we can not see them there, and they must have come from somewhere very far away from the sun.

In the fifties of the last century a cruel world Jan Oort Jan Oort orbits of comets and conclude that they should and that they came from the cloud spherical wide position the sun can be very large and a diameter of about a light year, and any guilty or body may take millions of years to orbit one cycle around the sun than those distance, has been called the Oort cloud, or a cloud.

But that does not explain a simple observation is that many of the short-term comets (comets short orbits) does not look like it Tji from that distance and in random directions, as they are in those spherical cloud, but it seems from the level consistent with the orbits of the planets in our solar system. Astronomer, another Keiber Kuiper, showed a proposal at the time that these objects came from somewhere much closer to the sun, and settled at the level of the nearest CD explains the orbits of these comets, and called on the region Keiber belt.

For years no one discovered the objects  from inside the Kuiper belt, but in 1992 discovered worlds Jean Liu and Dave Jewett Dave Jewitt and Jane Luu body there and called 1992 QB1, was the first thing is certain his presence later Pluto's orbit.

Since then, he found dozens of them, and they are very faint and very small objects, and a lot of them seem colored Rufous slightly, which may indicate the possibility of the presence of organic compounds (which are essential for life, but that does not necessarily mean that these objects out of life), and classifies Pluto is one of those objects, and these objects may have formed in a manner different from the other planets in the solar system.