new horizons

Images of the object nicknamed Ultima Thule photographed from the New Horizons spacecraft on Jan. 1. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Getty Images hide caption

This enhanced color image of Ultima Thule was taken at a distance of 85,000 miles and highlights its reddish surface. The image on the right has a far higher spatial resolution. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute hide caption

Members of the New Horizons team celebrated last year with a blown-up image of the postage stamp when the probe made its closest approach to Pluto. Bill Ingalls/AP hide caption

NASA's New Horizons spacecraft returned images, such as this one, to improve maps of different regions of Pluto. NASA/JHUAPL/SwRI hide caption

This view of Pluto is based on high-resolution images taken on by NASA's New Horizons spacecraft and shows a diverse and complex surface variety. NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute hide caption

New close-up images of a region near Pluto's equator reveal a giant surprise: a range of youthful mountains. NASA hide caption

The last image of Pluto taken by New Horizons. NASA hide caption