After being downgraded from a planet to a dwarf planet last year, it now transpires it is not even the biggest of those. |
In 2006 Pluto was officially downgraded from planet to dwarf planet, causing much controversy in astronomical circles. |
The Dawn rocket probe will visit Vesta and the dwarf planet Ceres. |
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. |
Charon, largest moon of the dwarf planet Pluto. |
A moon is a natural satellite that orbits a planet or dwarf planet. |