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Intro music.

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Accelerating to speeds of nearly Mach 9.8, or 7,000 miles per hour,

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NASA's supersonic combustion ramjet or scramjet, screamed into aviation history on November 16, 2004.

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The X-43 broke the sound barrier and all aviation speed records traveling at almost 10 times the speed of sound.

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Mated to a Pegasus booster rocket,

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the X-43 was carried aloft to 40,000 feet strapped to the wing of a modified B-52, which is ironically NASA's oldest aircraft.

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The B-52 released the booster after attaining altitude and the rocket ascended to 110,000 feet.

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At altitude the unpiloted X-43 separated from the booster,

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accelerated on scramjet power to a brief flight at nearly Mach 10.

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NASA's X-43 technology could represent a major step forward for providing economic, faster and safer access to space.

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The possibility also exists that scramjets could one day power a fleet of hypersonic airplanes,

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capable of crossing a continent in less than an hour.

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