One, zero and liftoff space shuttle Atlantis. Mission to mill, 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. I'm going to land. 30 seconds into the flight. Atlantis almost two miles in altitude, almost six miles down range. 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.