NASA Science Probe Breaks Ground 1 Billion Miles Past Pluto

Credit: Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute
Scientists suspect that 2014 MU69, nicknamed Ultima Thule, has not strayed far from where it formed some 4.5 billion years ago. Circling the Sun about 1 billion mi. past Pluto, Ultima Thule is one of hundreds of thousands of small bodies in the Kuiper Belt, a circumstellar disk of icy objects...

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