NASA in collaboration with Lockheed Martin are planning to make supersonic passenger travel a reality once again. Concorde, the last turbojet-powered supersonic passenger jet that was made jointly by France and the U.K. was retired in 2003. The new supersonic passenger aircraft will be much quieter and more fuel efficient and could soon be quietly traversing the skies at mach 2 speeds. Geek reports: It took time for the turbojet-powered Concorde to become profitable, as both the hardware and maintenance were considerably more expensive than traditional jets. However, people were willing to pay a premium to travel across the Atlantic at mach 2, thus cutting travel time in half. One of the main issues with the Concorde was that it could only travel at those phenomenal speeds over the Atlantic. The effects of sonic booms on the ground resulted in a prohibition on supersonic flight over land, so NASA and Lockheed are trying to get rid of the boom. FA-18 Hornet going past the speed of sound and through a Mach cone This program is part of the New Aviation Horizons initiative, a ten year program to develop new aviation technologies using NASA technology. NASA has been working on the [...]