Humanity at 'pivotal moment', Britain's Prince William tells COP in Brazil
Britain's Prince William says humanity is at a "pivotal moment" as he addresses world leaders at COP30 in the Brazilian city of Belem. IMAGES
X-59: Nasa presents its first quiet supersonic airplane
Source: BUZZROOM (Glomex)
Instead of a loud bang, Nasa's new supersonic airplane is supposed to produce a sound as loud as a car door slamming. Nasa and Lockheed Martin have now presented the jet for the first time - test flights are still pending.
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