“The eight-year, approximately $230 million NASA Hyper-X program was a high-risk, high-payoff research initiative that tackled challenges never before attempted.” The X-43A remains twenty years after ...

The set of problems that have never had a “just run it in the tunnel” has never had a hypersonics set. What X-43A has brought with it forever is that it made reality confront an engineering problem ...

NASA's X-43A hypersonic demonstrator is gearing up for its second Mach 7 flight attempt next month, the outcome of which may determine whether the program will make a third flight attempt at Mach 10.