A possible ice volcano on Pluto (visible at center) is seen in this NASA image, captured by the New Horizons spacecraft, released on Nov. 9, 2015. The feature, called Wright Mons, is a strange feature 100 miles wide and 13,000 feet high with a summit depression at its center. New Horizons scientists suspect Wright Mons and another mountain may be signs of cryovolcanic eruptions on Pluto. (Image cr