HISTORIC FIRST IMAGES OF ULTIMA THULE: Scientists from NASA's New Horizons mission have released the first detailed images of Ultima Thule, the most distant object ever explored. Its remarkable appearance, consisting of two primitive spheres stuck together in the middle, is unlike anything we've seen before. Visit today's edition of Spaceweather.com for photos and more information.
Above: Ultima Thule, photographed by New Horizons 30 minutes before the spacecraft's closest approach on Jan. 1, 2019.
