New Horizons discovers something mysterious about Ultima Thule ahead of next week's flyby

NASA launched the New Horizons spacecraft way back in 2006, and it has been making discoveries about our solar system since that launch. The next major target for New Horizons is a Kuiper Belt object called Ultima Thule. On New Year’s Day, New Horizons will zip past Ultima Thule at a distance of only 2,200 miles away. New Horizons first …