NASA's New Horizon's spacecraft will flyby Ultima Thule, one of the farthest objects in the solar system.
NASA plans a broadcast New Year's Day to show the photos as they are received.
New Horizons will pass by Ultima Thule at 9:33 p.m. Pacific Time. NASA expects to get the first photos around 7:15 a.m. Pacific time.
Ultima Thule was discovered by the Hubble Space telescope. Based on public votes, the object was named Ultima Thule by the public. It means "beyond the known world."
Ultima Thule is about 18 miles in size. It's about 4 billion miles from the sun.
This is the most distant planetary flyby that has yet been attempted, and the first time that a Solar System object of this type has been seen close-up.