SMRTR Science & EngineeringJun 9, 2026Science Daily

Planet nine mystery deepens as new discovery challenges hidden planet theory

SMRTR summary

A newly discovered space object called 2023 KQ14 challenges the "Planet Nine" theory, which suggests a large hidden planet influences weird orbits in the outer Solar System. The object's surprisingly stable orbit implies Planet Nine, if real, must be over 500AU away — making it even harder to detect or confirm.

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