Learn how the first Kuiper belt object (other than Pluto) was found in 1992 by David Jewitt and Jane Luu using CCDs and photographic plates. Explore the history, definition and characteristics of the Kuiper
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The existence of the Kuiper Belt was first proposed by Dutch-American astronomer Gerard Kuiper in 1951, although it was not directly observed until the 1990s. The discovery of the first
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Pluto was the first Kuiper Belt Object discovered, but was classed as a planet because other Kuiper Belt Objects had not yet been discovered. Pluto was downgraded when the KBO Eris
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The largest Kuiper Belt object is the dwarf planet Pluto, which has a diameter of 2,376 km (1,476 miles). It is followed by another dwarf planet, Eris, which is 2,326 km (or 1,445 miles) in diameter.
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Learn how Gerard Kuiper proposed the existence of a region of icy objects beyond Neptune in 1951, and how David Jewitt and Jane Luu discovered the first Kuiper
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After taking several more images of the same part of the sky, there could be no doubt: they had discovered the first Kuiper Belt Object (KBO). It was a small world of ice and dust, perhaps 250
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The first spacecraft to enter the Kuiper Belt region was NASA''s Pioneer 10 spacecraft, when it crossed into the space beyond Neptune''s orbit in 1983. But that spacecraft didn''t visit any of
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A classical Kuiper belt object, also called a cubewano (/ ˌkjuːbiːˈwʌnoʊ / "QB1-o"), [a] is a low-eccentricity Kuiper belt object (KBO) that orbits beyond Neptune and is not controlled by an orbital
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There are likely to be a few more objects the size of Pluto and there''s room for something much larger, but not in the inner regions of the belt where a large body would be easy to
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The spacecraft will study Pluto and its many moons and also continue further into the Kuiper belt. We can look forward to a rapid growth in our knowledge of the outer solar system in the coming years.
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It wasn''t until 1992 that the first Kuiper Belt Object (other than Pluto) was discovered. Astronomers David Jewitt and Jane Luu found 1992 QB1, a small icy body about 200 km in diameter orbiting beyond
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