Ultima Thule
NASA's New Horizons probe passes Ultima Thule in most distant flyby by man-made spacecraft
Icy world Ultima Thule is located in the Kuiper belt, 6.5 billion kilometres from Earth
NASA's New Horizons spacecraft to flyby Kuiper Belt object Ultima Thule on New Year's Day 2019
Set your alarm for New Year's Day 2019
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