Fifteen years ago, Pluto was kicked out ... lobby for a broader definition. The debate over classifying solar system objects reminds me of another classification challenge: categorizing the ...

The probe’s revelations have revived debate about Pluto ... Both Morison and Byrne agree the IAU classification has had a scientific impact, and think Pluto and similar bodies should be ...

I blame the Pluto people for that. (This is what a debate among astronomers talking about the term ‘dwarf planets’ was like.) Philip Metzger: We would say that there are a lot of dwarf planets ...

Elon Musk, under the username "Kekius Maximus," has joined William Shatner in advocating for Pluto's reclassification as a ...

Officially, Pluto is still not a planet. But five years after the ruling that demoted the icy object to dwarf planet, people continue struggling with the definition, and the debate over what ...

But the sub-classification of planets ... to take many close-up pictures. Does Pluto deserve to be included in the list of major planets? The debate still rages in some quarters, with deserving ...

PLUTO was looking more and more like a goner on Tuesday as astronomers meeting in Prague continued to debate the definition ... would set up a three-tiered classification scheme with eight ...

Brown: This is why this whole debate is not about ... If it wants Pluto not to be a planet, fantastic. Deciding which of several equally rational classification systems gets to own the word ...

Because the debate is not over,” New Mexico State University astronomer Bernie McNamara told a high-spirited group of Pluto supporters ... and developed a world-class astronomy research program.