it's not -- it shows a certain lack of commitment to a culture of safety. >> reporter: russian observers say the details are a blow to vladimir putin's credibility. in the past putin denied any responsibility for the crash of mh17. >> there is so much overwhelming evidence that the kremlin can continue to deny that it doesn't have involvement but it just does not stand to any test. >> that was cnn aviation correspondent rene marsh reporting there. the new hoe raisin space probe has beamed back the clearest and most detailed photos anyone has ever seen of the dwarf planet pluto and its largest moon charon. and now scientists are analyzing the images. >> nasa says they reveal frozen