The scaled-down prototype, nicknamed the "Baby Boom", broke the sound barrier for the first time during a test flight over ...
Supersonic planes will burn significantly more fuel than current aircraft, resulting in higher emissions of carbon dioxide, ...
The sound from the fighter jet is trapped inside its shock wave ... In the early 1970s, sonic boom concerns led the ...
SpaceX chief and now US government special advisor Elon Musk says the current administration may scrap regulations ...
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