THE MYSTERY OF ULTIMA THULE: NASA's New Horizons spacecraft is about to make history--again. The distant probe is less than two weeks away from "Ultima Thule," a strangely elongated object in the distant reaches of the solar system. On New Year's Eve, New Horizons will fly past Ultima Thule three times closer than it buzzed Pluto in July 2015 giving scientists their first close-up look at a small Kuiper Belt Object. Visit today's edition of Spaceweather.com for the full story.