NASA is building a quiet supersonic jet prototype

NASA is leading a project to build the next generation of supersonic aircraft, which will produce very quiet sonic booms. This will allow it to be utilized as a commercial jet over populated areas. Read more...

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from Mashable https://mashable.com/2018/04/05/nasa-developing-quiet-supersonic-jet/?utm_campaign=Mash-Prod-RSS-Feedburner-All-Partial&utm_cid=Mash-Prod-RSS-Feedburner-All-Partial
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