FOX NEWS: NASA's New Horizons probe completes flyby of Ultima Thule, the most distant object ever visited by a spacecraft

NASA's New Horizons probe completes flyby of Ultima Thule, the most distant object ever visited by a spacecraft



Scientists believe that objects like Ultima located in the Kuiper belt, a band of frozen material that orbits the Sun far beyond even the dwarf planet Pluto, hold clues to the formation conditions of the Solar System 4.6 billion years ago.

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