It may look a little blurry, but the bright orange-tinted circle in the middle of the photo above is the first color image of Pluto and its largest moon, Charon. The image was taken by the Ralph color ...

NASA explains Pluto's newly discovered "blue sky" and whether or not potential astronauts could ever witness an Earth-like sunrise. The New Horizons space probe sent back its first color images of ...

NASA unveiled new images today from its New Horizons mission to Pluto, showing more detail on the dwarf planet's surface -- as well as additional evidence of flowing ice. Share on Facebook (opens in a ...