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Hypersonic
 

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      able to reach speeds equal to or more than five times the speed of sound

 


Sentences:
NASA's X-43A scramjet set a new world speed record in 2004 when it flew at hypersonic speeds.

The X-43A reached a speed of nearly 7,000 miles per hour, which means it reached a hypersonic speed.

 


More Information:
How Do Airplanes Fly?
What Is Aerodynamics?
 

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The X-43A launches from a modified Pegasus booster rocket
A modified Pegasus booster rocket fires to send the X-43A on its record-setting flight on Nov. 16, 2004.
Image Credit: 
NASA
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Page Last Updated: October 9th, 2014
Page Editor: Sandra May