Cosmic Log: Pluto politics left behind

Pluto and its pals loomed over the stage when the International Astronomical Union kicked off its general assembly this week in Rio de Janeiro , three years after its controversial decision to reclassify the icy world as a dwarf-planet non-planet. But that's as close as the issue will get to the spotlight this time around. Neither the pro-Pluto nor the anti-Pluto adherents have any interest in reviving the debate over planethood - and it'll likely be a long time before the IAU gets back into p

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