1 00:00:01,300 --> 00:00:02,010 (Background . . . 10, 9,) 2 00:00:02,010 --> 00:00:09,010 Mike Curie/NASA Launch Commentator: 9, 8, 7, 6, 5, 4, 3, 2, 1 . . . engines ignited 3 00:00:11,940 --> 00:00:18,940 . and we have liftoff of SpaceX Falcon 9 rocket and Dragon. CRS-4 is underway. 4 00:00:20,359 --> 00:00:26,499 A U.S. commercial spacecraft launching from American soil delivers new science and 5 00:00:26,499 --> 00:00:31,019 technology to the International Space Station. 6 00:00:36,460 --> 00:00:33,410 (Inaudible) 7 00:00:51,960 --> 00:00:55,400 Mike Curie/NASA Launch Commentator: At one minute, 13 seconds after liftoff, the 8 00:00:55,410 --> 00:00:59,960 Falcon 9 will reach supersonic speed passing through the area of maximum 9 00:00:59,960 --> 00:01:01,890 aerodynamic pressure. 10 00:01:01,890 --> 00:01:02,859 (Inaudible) 11 00:01:02,859 --> 00:01:09,620 Mike Curie/NASA Launch Commentator: Ten seconds later. 12 00:01:09,620 --> 00:01:10,590 (Inaudible) 13 00:01:10,590 --> 00:01:17,590 Altitude 5.8 kilometers -- speed 250 meters per second downrange distance 14 00:01:27,660 --> 00:01:24,560 (Inaudible) 15 00:01:35,630 --> 00:01:40,840 Vehicle's reaching maximum aerodynamic pressure.