A day after we caught a glimpse of the best photo we've seen yet of Pluto, NASA has released an even closer shot of the dwarf planet: Behold the image above. In a press conference today, the team behind NASA's New Horizons probe gave more information about what they learned from these new images. "This is a very young surface because we have yet to find craters," said John Spencer from the Southwest Research Institute. "It's less than a 100 million years old." The mountains you see in that photo measure up to 11,000 feet high and is primarily made out of icy bedrock, while the overall surface appears to be covered in a layer of nitrogen, methane and carbon monoxide.