The red outline in this global view of Pluto from NASA's New Horizons marks the large area of mysterious, bladed terrain extending from the eastern section of the large feature informally named Tombaugh Regio.
One of the strangest landforms spotted by NASA's New Horizons spacecraft when it flew past Pluto last July was the 'bladed' terrain just east of Tombaugh Regio, the informal name given to Pluto's large heart-shaped surface feature.
This enhanced color view from NASA's New Horizons is of Pluto's surface diversity At lower right, ancient, heavily cratered terrain is coated with dark, reddish tholins. At upper right, volatile ices fill the informally named Sputnik Planum.
Scientists on NASA's New Horizons mission have discovered what looks like a giant bite-mark on the planet's surface. The southern portion of the left inset above shows the cratered plateau uplands informally named Vega Terra.
This ethereal scene captured by NASA's New Horizons spacecraft tells yet another story of Pluto's diversity of geological and compositional features-this time in an enhanced color image of the north polar area.
This false-color image, derived from observations in infrared light by the LEISA instrument, shows where the spectral features of water ice are abundant on Pluto's surface based on two scans obtained by NASA's New Horizons on July 14, 2015.
This image from NASA's New Horizons spacecraft is the first look at Pluto's atmosphere in infrared wavelengths. The blue ring around Pluto is caused by sunlight scattering from haze particles common in Pluto's atmosphere.
This approximate true-color image from NASA's New Horizons shows hydrocarbons accumulating into small particles, a fraction of a micrometer in size, and scatter sunlight to make the bright blue haze seen in this image.
Scientists with NASA's New Horizons mission have assembled the highest-resolution color view of one of two potential cryovolcanoes spotted on the surface of the distant planet by the passing New Horizons spacecraft in July 2015.
Pluto nearly fills the frame in this image from NASA's New Horizons, taken on July 13, 2015. This is the last and most detailed image sent to Earth before the spacecraft's closest approach to Pluto on July 14.
This is a portion of a high-resolution swath of Pluto sweeping over the cratered plains west of NASA's New Horizons' encounter hemisphere and across numerous prominent faults, skimming the eastern margin of the dark, forbidding region of Cthulhu Regio.