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|"Pluto has suffered yet another blow to its status.|
Not only has it been demoted from planet to "dwarf planet", research now shows that it cannot even lay claim to being the biggest of these.
A study has confirmed that the dwarf planet Eris - whose discovery prompted Pluto's relegation from planet to dwarf - outranks it in mass.
The US team, whose work is published in the journal Science, described their finding as "Pluto's last stand"."