New images of Pluto taken by NASA’s New Horizons spacecraft have revealed the unique features that make up its strange, shadowy surface, including a feature that’s been nicknamed 'the whale', and a dark, heart-shaped patch. New Horizons is about to make its closest flyby of Pluto and its five known moons, and will capture even better images of its icy exterior. Data captured during this time will be transmitted back to Earth over the next 16 months.