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Trans-Neptunian objects may come from earth

Diagram showing orbital elements, and in particular the argument of perihelion (ω) as it relates to the Sun and the object's point of closest approach.
Diagram showing orbital elements, and in particular the argument of perihelion (ω) as it relates to the Sun and the object's point of closest approach.
Graphic courtesy Walter T. Brown, Center for Scientific Creation. Used by permission.
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