Rows over planetary status are as old as the asteroids
2 September 2006
Even as you mourn Pluto's demotion from planet, spare a thought for poor old Ceres, which has twice battled to attain planetary status
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Found 393 results for dwarf planet
Astronomers plot to overturn planet definition
31 August 2006
Several hundred researchers have signed a petition to do away with the new definition, which strips Pluto of its status as a planet
New planet definition sparks furore
25 August 2006
Some astronomers say the Earth and three other planets fail to meet the criteria of the new definition, which was decided by just 4% of eligible voters
Pluto gets the boot as the planet count drops
24 August 2006
Astronomers voted to demote Pluto to "dwarf planet" status, leaving eight fully fledged planets – but there is still a crumb of comfort for fans of the distant, frigid world
Pluto's fate is balanced on a knife edge
24 August 2006
After days of heated wrangling, astronomers will today decide on the definition of a planet – will Pluto be left out in the cold?
Astronomers lean towards eight planets
22 August 2006
After a heated public debate and subsequent closed-door negotiations, astronomers settle on a draft planet definition that would demote Pluto
Battle of the planet definitions heats up
22 August 2006
The latest attempt to define "planet" meets with a hostile response from astronomers at a key meeting in Prague
Pluto may yet lose planet status
18 August 2006
A second definition that says a planet is "by far the largest body in its local population" has been proposed at a meeting of the International Astronomical Union
Planet debate: Proposed new definitions
16 August 2006
The International Astronomical Union will vote next week on what constitutes a planet – use our handy guide to see what all the fuss is about
Three new planets may join solar system
16 August 2006
A new proposal that defines 'planet' as a round body in orbit around a star would add a former asteroid, Pluto's moon and "Xena" to the solar system's pantheon of planets
