Glide Characteristics News Today

Jenna: well put. context for us to take in today. we often dont think of the smithsonian as a retirement home. in a way thats what is going to happen to discovery. doug, if you will just take us to, again the scene that youre watching. i tried to describe what is tolding discovery onto the 747. can you talk to us a little bit about how they made -- what they did to keep discovery attached to the 747 to make this flight? >> reporter: well, its something that nasa is well experienced with. its bas...