| It is now believed that Pluto is a dwarf planet, like several others that have been found. |
| A paper in the journal Science has further relegated poor Pluto's status by proving that twin dwarf planet Eris is 27 per cent larger. |
| In 2006 Pluto was officially downgraded from planet to dwarf planet, causing much controversy in astronomical circles. |
| Clyde Tombaugh, the head of optics at the missile range and the discoverer of the dwarf planet Pluto, took him under his wing and helped him build telescopes from cast-off technology. |
| In 2006, Pluto was downgraded from an official planet to a dwarf planet by the International Astronomical Union. |
| So it was downgraded to dwarf planet status. |
