NASA’s New Horizons Reveals Geologically Active World on Pluto

An illustration of the dwarf planet Pluto

NASA’s New Horizons spacecraft transformed the scientific understanding of Pluto during its July 14, 2015 flyby, revealing a geologically active world with nitrogen glaciers, water-ice mountains, and a possible subsurface ocean. These findings challenged the long-held assumption that the distant dwarf planet was a frozen, cratered relic. For decades, Pluto existed in the human imagination … Read more