More than two decades after the retirement of the Concorde, American aircraft company Boom Supersonic has achieved supersonic flight with its XB-1 prototype in a test flight above the Mojave Desert. More about XB-1 jet breaks sound barrier in bid for "return of commercial supersonic flight"
Space agency NASA and aerospace company Lockheed Martin have presented their experimental X-59 supersonic jet, which has a form designed to reduce the loudness of a sonic boom. More about NASA and Lockheed Martin unveil "quiet supersonic" jet
Aerospace brand Virgin Galactic has unveiled a concept for a high-speed passenger aircraft called Mach 3, which could travel at three times the speed of sound. More about Virgin Galactic's high-speed Mach 3 aircraft will usher "a new frontier in high-speed travel"
Boeing has revealed a concept design for a hypersonic aircraft that could reach most locations in the world within one to three hours. More about Boeing unveils design for hypersonic passenger plane
NASA has started production of a plane that will fly faster than the speed of sound, but will be almost inaudible from the ground below. More about NASA's "nearly silent" supersonic X-Plane goes into production
A group of aviation experts has unveiled plans for a supersonic speed plane named Boom, which is being developed as a replacement for Concorde. More about Supersonic Boom aircraft will be the "fastest passenger plane ever"
NASA has unveiled a conceptual design for a supersonic plane that would be much quieter than Concorde. More about NASA is developing a quiet supersonic passenger jet for overland flights
Boston engineering firm Spike Aerospace is building a windowless supersonic jet that will be able to fly from London to New York in under four hours, and will offer passengers digital views of their surroundings (+ slideshow). More about World's first supersonic private jet will replace windows with live-streaming screens