The Kuiper Belt is packed with weird peanut-shaped objects. Astronomers think they know why
SMRTR summary
Astronomers have solved the mystery of why many objects in the Kuiper Belt have strange peanut-shaped forms with two lobes instead of spherical shapes. New computer simulations show these "contact binaries" formed directly from single collapsing dust clouds 4.6 billion years ago, rather than from two separate objects slowly merging together as previously thought.
SMRTR provides this summary for quick context. The original article belongs to Scientific American.
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