The Big Mystery of the Kuiper Belt — a Lack of Small Objects

The Kuiper Belt contains few small bodies, according to a new report from the Southwest Research Institute. This collection of rocks and ice surrounds our planetary system like a massive doughnut, larger than the orbit of Neptune. Photographs taken of Pluto and its largest moon, Charon, show few craters, suggesting that the Kuiper Belt, in which Pluto resides, contains few small objects, less than a mile in diameter. Researchers are uncertain why the grouping contains so few small bodies.

Read More The Big Mystery of the Kuiper Belt — a Lack of Small Objects
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