Follow photojournalist James Balog to some of the most remote and beautiful places on Earth as he documents the disappearance of an icy landscape that took .\rbr\rbr\rbr\rbrLiam Neeson narrates this film, part of the Evolution series, considering the process of extinction and its implications for evolutionary theory. Five mass .\rbr\rbr\rbr\rbrHubble Space Telescope is awaiting one final shuttle servicing mission, but why is a telescope worth the risk? Hubble has made numerous discoveries, such as .