New Horizons spacecraft to provide closest look yet at dwarf planet
JHUAPL, SWRI, NASA
The New Horizons spacecraft flew by Pluto at 7:49 a.m. EDT on July 14, 2015. Astronomy writer Christopher Crockett wrote several updates from mission control at the Johns Hopkins University Applied Physics Lab in Laurel, Md., from July 12-15, and reviewed some of the mission's major milestones from the last several months. Check our Mission to Pluto editor’s pick for the latest on New Horizons and the dwarf planet.
Updated 5:39 p.m., July 15, 2015
Where to start?
An elongated Hydra is composed of largely water ice. Charon has canyons up to 10 kilometers deep. And Pluto has mountains of water ice over 3,000 meters high.
Let that sink in: water-ice mountains that could hold their own next to the Rockies. “Who would have supposed ice mountains?” asked