Supersonic Green Machine sends greetings from the future

While many of us are busy debating the relative merits of pocket-sized technology, NASA is mulling over ideas on a much grander scale. Submitted as part of the Administration's research into advanced aeronautics, the above Lockheed Martin-designed aircraft is just one vision of how air travel might be conducted in the future. It's a supersonic jet employing an inverted-V engine-under-wing configuration, which apparently helps to significantly reduce the resultant sonic boom. Other than that, we're only told that "other revolutionary technologies" will provide for the achievement of range, payload and environmental goals. So that snazzy paintjob wasn't just for show, after all -- who'd have guessed?