Introduction: Echoes of the Concorde Era In 2003, the iconic Concorde—a marvel of 20th-century engineering—retired, leaving a sonic boom-shaped hole in commercial aviation. For two decades, supersonic passenger travel seemed relegated to history books. But today, a new wave of aerospace innovators, backed by cutting-edge technology and sustainability ambitions, is reigniting the dream of faster-than-sound flight. Could the 2030s mark the return of supersonic jets, or will history repeat its challenges? A modern airport scene featuring a next-generation supersonic jet with a streamlined design and elongated nose for sonic boom reduction. Digital displays promote sustainable aviation fuel (SAF) and fast transatlantic routes like "New York to London in 3.5 hours." The background showcases a glass-walled terminal under a bright sky, symbolizing the future of high-speed, eco-friendly air travel. The Concorde, a symbol of luxury and speed, halved transatlantic travel times, flyin...