Kuiper Belt

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Kuiper belt is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune at 30 astronomical units (AU) to approximately 50 AU from the Sun. It is similar to the asteroid belt, but is far larger—20 times as wide and 20–200 times as massive. Like the asteroid belt, it consists mainly of small bodies or remnants from when the Solar System formed. While many asteroids are composed primarily of rock and metal, most Kuiper belt objects are composed largely of frozen volatiles (termed “ices”), such as methane, ammonia, and water. The Kuiper belt is home to most of the objects that astronomers generally accept as dwarf planets. Some of the Solar System’s moons, such as Neptune’s Triton and Saturn’s Phoebe, may have originated in the region. — Wikipedia

Kuiper Belt (Encyclopædia Britannica)

Kuiper Belt (COSMOS: The SAO Encyclopedia of Astronomy)
Kuiper Belt Objects (COSMOS: The SAO Encyclopedia of Astronomy)

Kuiper Belt (Wolfram Alpha)

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Innovation

Science

Solar System Exploration: Kuiper Belt (NASA Science)

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Preservation

History

In 1951, in a paper in Astrophysics: A Topical Symposium, Gerard Kuiper speculated on a similar disc having formed early in the Solar System’s evolution. — Wikipedia

Gerard Kuiper and Trans-Neptunian Comet Belt (American Museum of Natural History)
Gerard Kuiper (NASA)
Gerard Peter Kuiper (Encyclopædia Britannica)
Gerard Kuiper (Wikipedia)