When did Pluto stop being a planet?
system
When did Pluto stop being a planet?
user
Pluto stopped being a planet in 2006. It was re-classified as a dwarf planet because 1) it crosses Neptune's orbit and 2) its size and gravitational pull mean it does not have a clear path in its orbit around the sun.
assistant
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<|user|>
When did Pluto stop being a planet?</s>
<|assistant|>
Pluto stopped being a planet in 2006. It was re-classified as a dwarf planet because 1) it crosses Neptune's orbit and 2) its size and gravitational pull mean it does not have a clear path in its orbit around the sun.</s>
