https://www.space.com/25695-sedna-dwarf-planet.html
Sedna: Possible Dwarf Planet Far From the Sun | Space
Apr 30, 2014 - Sedna is a dwarf planet candidate that is one of the most distant bodies found in our solar system.
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https://spaceref.com/science-and-exploration/primitive-asteroids-may-have-formed-far-from-the-sun/
Primitive Asteroids May Have Formed Far From The Sun - SpaceRef
May 24, 2013 - Space news and reference site.
far from the sunhave formedprimitiveasteroidsmay