NASA's New Horizons spacecraft has discovered Pluto's 'heart'

NASA's New Horizons spacecraft has discovered a vast, crater less plain in Pluto's 'heart' that appears to be no more than 100 million years old, and is possibly still being shaped by geologic processes.This frozen region is north of Pluto's icy mountains, in the center -left of the heart feature informally named Tombaugh Region.