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Planet Nine
A Massive New Object Has Been Discovered Beyond Pluto—Could It Be a Dwarf Planet?

A Massive New Object Has Been Discovered Beyond Pluto—Could It Be a Dwarf Planet?

Oct 29, 2026
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Chrissy Newton
planet nine

A Massive Hidden Planet May Be Lurking Beyond Neptune—This Caltech Scientist Thinks "Planet Nine" Could Be Confirmed This Year

Jun 5, 2026
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Chrissy Newton
Planet Y

A Mysterious Warp at the Edge of the Solar System May Point to the Existence of a Hidden "Planet Y"

Oct 11, 2025
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Ryan Whalen
Ammonite

Enter Ammonite: Discovery of Distant Space Object Shakes Up the Hunt for Planet Nine

Jul 22, 2025
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Chrissy Newton
planet nine

Scientists Find “Up to a 40% Chance” Theoretical ‘Planet Nine’ Exists Given the Correct Conditions

May 28, 2025
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Christopher Plain
Planet X

The Hunt for “Planet X”: Is a Secret “Super-Earth” Lurking in Our Solar System?

May 15, 2025
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Micah Hanks
Planet Nine

Search for Mysterious "Planet Nine" Aided by Hubble Exoplanet Discovery

Dec 12, 2020
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Micah Hanks
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