A new study shows that many ‘ultra-wide’ binaries (UWBs) in the Kuiper belt are not primordial but attained their present large separations during multiple encounters with other trans-Neptunian objects, and constrain Solar System formation and evolution differently than previously thought.

中文翻译：

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柯伊伯带的广泛影响


一项新的研究表明，柯伊伯带中的许多“超宽”双星 （UWB） 并不是原始的，而是在与其他跨海王星天体的多次相遇中实现了现在的大分离，并且以不同于以前认为的方式限制了太阳系的形成和演化。