New Horizons to Zoom Past Ultima Thule on New Year's

TLDR version: The New Horizons probe that got the first close look at Pluto in summer 2015 is slated to zip past an even more distant Kupier Belt object in the early hours of New Year's Day.  The flyby will occur at 12:33 am EST, but being just over 6 light-hours away we won't know how things went until almost 7 EST on New Year's morning.  We know next to nothing about this or for that matter any other KBO, so the flyby is sure to turn up something cool and unexpected.

You can find more details at:
space.com
Ars Technica
NASA's JPL site

Artist's concept of the flyby.  In reality, we have very little idea what this thing looks like, beyond (possibly) having two main masses.  Connected?  Orbiting each other?  No idea, the Hubble couldn't resolve much more than a slightly bi-blobular blur.  Exciting times!