D-10, 9, 8, 7, 6, 5, 3, 2, 1, 0, we're in. Lift off of space shuttle Atlantis. On the mission to build, resupply, and to do research on the International Space Station. Houston now controlling Atlantis begins its penultimate journey to shore up the International Space Station. Atlantis now on the proper alignment for its 8.5 minute line to orbit, 4.5 million pounds of hardware and humans taking aim on the International Outpost. Thirty seconds into the flight, Atlantis almost two miles in altitude, almost six miles down range from the Kennedy Space Center already traveling 500 miles an hour. The three liquid fuel main engines now throttling back to 72% of rated performance, going into the bucket, reducing the stress on the shuttle as it breaks through the sound barrier.