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Are you still reeling from Pluto's demotion from the family of planets in our solar system? Then take heart, as planetary scientists are hot on the trail of a possible replacement for Pluto:
New clues in search for Planet Nine
The primary clue is orbital resonance among several bodies in the Kuiper belt. This new planet, if it exists, would be at least 10 times as massive as Earth, and over 660 times as far from the sun, following a highly elliptical orbit, which it would take over 17,000 years to complete.
New clues in search for Planet Nine
The primary clue is orbital resonance among several bodies in the Kuiper belt. This new planet, if it exists, would be at least 10 times as massive as Earth, and over 660 times as far from the sun, following a highly elliptical orbit, which it would take over 17,000 years to complete.