NASA Testing Supersonic X-51A Jet Tomorrow
First time accepted submitter littlesparkvt writes "The NASA and the Pentagon's experimental aircraft could go from NY to London in about an hour. With a cost of 140 million dollars USD. During the test the X51-A will reach speeds of 1700 meters a second and climb to an altitude of 70,000 feet."
Still costs less than a F22 Raptor http://en.wikipedia.org/wiki/Lockheed_Martin_F-22_Raptor