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 ...

WAYNESBORO - Almost 10 years years after Pluto was demoted from its planet status the debate continues over ... planets in the solar system to the classification of a dwarf planet by the ...

(CNN)-- For one of the farthest, coldest places in the solar system, Pluto sure stirs a lot of hot ... nine --planets in the solar system. Today, debate still rages over how to classify the ...

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 planet. Shatner playfully suggested Musk persuade the President via executive ...

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 ...

The decision to reinstate Pluto as a planet is not a recent topic of debate, however. There has been much argument over the classification of a planet since the ruling was made by the IAU.