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COMMENTATOR ALLARD BEUTEL: Ten seconds. We have "go" for main engine

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start... seven... six... five... four... three... two... one... booster ignition, and liftoff of

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shuttle Discovery, gambatte kudasai, best of luck to the International

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Space Station's newest laboratory.

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COMMANDER MARK KELLY: (Inaudible) Discovery roll program.

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CAPCOM: Roger, roll Discovery.

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COMMENTATOR ROB NAVIUS:  Houston now controlling of the flight of

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Discovery, of man-made rising sun on behalf of Japan.

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Discovery on the proper alignment, heads down, wings level, for the eight and a

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half minute ride to orbit, four and a half million pounds of hardware and humans

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taking aim on the International Space Station.

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At 36 seconds into flight, the three liquid fuel main engines now throttling back to

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72 percent of rated performance, going in the bucket, reducing the stress on the

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shuttle as it goes supersonic.

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Discovery already five miles in altitude, eight and a half miles down range,

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traveling almost 1, 000 miles an hour.

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CAPCOM: Discovery, Houston, go at throttle up.

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KELLY: Roger go at throttle up.

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NAVIUS: Throttle up call acknowledged by Commander Mark Kelly, joined on the

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flight deck by Pilot Ken Ham, Flight Engineer Ron Garan, and Mission Specialist

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Karen Nyberg. Down on the middeck are Mike Fossum, Akihiko Hoshide, and

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Greg Chamitoff, heading for a half year on the International Space Station.

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One minute, 45 seconds into the flight, Discovery 22 miles in altitude, 23 miles

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down range, standing by for solid rocket booster separation.

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Booster officer confirms staging, a good solid rocket booster separation.