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A vast ring of primordial debris extends far beyond Neptune orbit. The figure is taken from NASA Science, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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The Kuiper Belt holds hundreds of thousands of icy bodies

A vast ring of primordial debris extends far beyond Neptune orbit

Stretching from Neptune's orbit at 30 Astronomical Units out to roughly 50 AU, the Kuiper Belt is a donut-shaped region of icy planetesimals left over from solar system formation. It hosts dwarf planets like Pluto, Haumea and Makemake along with hundreds of thousands of icy bodies.

Hundreds and thousands! (1852420382) — ☻☺ · CC BY-SA 2.0 · licence · source

Where this comes from

NASA Science

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Tags: kuiper belt, neptune, comets

The Kuiper Belt holds hundreds of thousands of icy bodies: the short answers

Where does this come from, and can I check it?: A vast ring of primordial debris extends far beyond Neptune orbit. The figure is taken from NASA Science, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a space fact?: Yes. It sits on the Space shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.