. >> stephanie sy breaks it down by the numbers. >> zero and liftoff. >> reporter: it takes an astounding million gallons of fuel at liftoff to propel "atlantis" out of the earth's atmosphere. to put that in perspective if you had to fill it at your local gas station it will run you a cool $12.3 million. in fact, road tripping on board isn't cheap. it cost $450,000,000 to launch a space shuttle. combine this with the fact that it comes off the lot with a $1.7 billion sticker price and you've got a very expensive extraterrestrial jaunt. however, if you can handle the sticker shot, the ride up there is pretty amazing. in fact, when "atlantis" is in orbit it travels around the earth at 17,500 miles an hour. at this speed that's fast enough to see a sunrise or sunset every 45 minutes. in fact, "atlantis" has orbited the earth a dizzying 4,648 tons and at 30 years of service in space, all of this time in the sky amounts to an amazing 293 days, 18 hours and 29 minutes and 37 seconds high above the earth. >> range is 104%. >> that fueling process, adding the liquid hydrogen and -- >> these are m