Astronomers Find Solar System Body. Kuiper Belt objects began to be discovered only a decade ago, but they are the most abundant large objects in the solar system. Now one of the largest, rivalling Pluto’s moon Charon in size, has been found. Understanding the nature of the Kuiper Belt has led to the recent debates about whether it is proper to continue to consider Pluto to be a planet. If it is, this discovery indicates that other ‘planets’ may lurk out beyond awaiting discovery. AP