Since the days of Ronald Reagan's presidency the talk has been that of passenger jetliners that break the gravity of earth to jump from New York to Los Angeles in an hour. How about from New York to London in an hour? NASA has teamed up with Lockheed Martin to do just that. The "Green Machine"pictured at the left has a specially designed tail to counter the sound of the sonic boom. The streamlined body will pierce the atmosphere to lower the gravity fuel guzzling constraints, increase speed with special engines, and significantly cutting down on flight times and fuel consumption as a result. With the announcements that China high speed rails could reach speeds of a thousand miles an hour soon, commercial planes as we know them will advance or go extinct.