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The Kuiper Belt

The Kuiper Belt is a doughnut-shaped region of icy objects beyond the orbit of Neptune. It is home to Pluto and most of the known dwarf planets and some comets.

This artist's impression is of NASA's New Horizons spacecraft encountering Arrokoth, a Kuiper Belt object that orbits one billion miles (1.6 billion kilometers) beyond Pluto, on Jan. 1, 2019.

Kuiper Belt Facts

The Kuiper Belt is a large, doughnut-shaped region of icy bodies extending far beyond the orbit of Neptune.

The Kuiper Belt is home to Pluto and Arrokoth. Both worlds were visited by NASA's New Horizons spacecraft. There may be millions of other icy worlds in the Kuiper Belt that were left over from the formation of our solar system.

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Hubble Images of Kuiper Belt Objects
These two multiple-exposure images from Hubble show Kuiper Belt Objects against a background of stars in the constellation Sagittarius. The two KBOs are roughly 4 billion miles from Earth.
NASA, ESA, SwRI, JHU/APL, New Horizons KBO Search Team
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