The NASA spacecraft that yielded the first close-up views of Pluto opened the new year at an even more distant world, the Kuiper Belt object Ultima Thule. The mysterious, ancient target is 6.4 billion kilometers from the Earth. It's the farthest flyby in the history of solar system exploration and the second for New Horizons, which visited Pluto in July 2015.
Updated 17:19, 04-Jan-2019