A little after midnight on New Year's Day (12:33am on January 1st, 2019), the New Horizons spacecraft flew past Ultima Thule, an object in the Kuiper Belt a billion miles from Pluto and 4 billion miles from the Sun!
See science panels, experience the flyby moments, watch the "phone home" moment and see the science results from the first days of data. All from the home of the missions operations center at the Johns Hopkins Applied Physics Lab in Laurel, Md.
Mission page:
http://pluto.jhuapl.edu/