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."
"The whole problem with the world is that fools and fanatics are always so
certain of themselves, but wiser people so full of doubts."
-- Bertrand Russell