LEON HARRIS, CNN ANCHOR: A lot of activity under way aboard the Shuttle Atlantis, as the crew is getting ready to dock with the International Space Station. We expect that to happen in about an hour and a half from now. Now, this is a critical mission, to put it mildly even. The crew is delivering a $1.4 billion science lab, which will become the heart and soul of this joint space effort. And to help explain what's at stake, we welcome our space correspondent Miles O'Brien, who just finished towards anchoring this morning on "EARLY EDITION" as well.</s>MILES O'BRIEN, CNN CORRESPONDENT: Busy morning here. But it's probably not quite as busy what's going on 225 miles above us...</s>HARRIS: Yes.</s>O'BRIEN: ... on space shuttle Atlantis.</s>HARRIS: Yes, what's going on up there right now?</s>O'BRIEN: Well, let's take a look at some animation. I'll sort of walk you through the whole procedure for a space shuttle, International Space Station Dock. And this is the sixth time that it's happened. So I hesitate to say it's routine. But it has been done before. Take a look at what's going to happen. Kent Kock (ph) will be at the controls of the shuttle. And we're going to tell you more about this later just in a moment.
Atlantis Crew Prepares to Dock With International Space Station