The concept, a product of the go-go 1960's, was killed by an unlikely environmental pioneer, President Richard Nixon ...

For now, it seems very unlikely Airbus will develop another double-decker and is instead more focused on next-generation technologies.

Discover how NASA's groundbreaking X-59 aircraft aims to break the sound barrier in silence, paving the way for a new era of quiet supersonic travel. Recent wind tunnel tests reveal promising results.