The hypothetical SR-72 “Darkstar” is not an obsolete concept in the age of spy satellites but a necessary complement to them. -Some, though, have called the SR-72 a modern battleship in the sense that ...

The SR-72 “Darkstar,” the hypersonic successor to the SR-71 Blackbird, is being envisioned not just as a spy plane but also as a bomber, a role its famous predecessor never fulfilled. -While the SR-71 ...