The SR-72 “Darkstar” is envisioned as a Mach-6, air-breathing ISR platform—but could it strike? -Hypersonic speed complicates ...

The SR-71 retired in 1999, but its rumored successor—the SR-72 “Darkstar”—keeps resurfacing. -Lockheed’s Skunk Works has ...

Here’s What You Need to Remember: So far, the SR-72 exists only on paper; none of the aircraft have yet been built, let alone flown. More than fifty years after its... Here’s What You Need to Remember ...

The SR-71 is perhaps the most iconic Cold War spy aircraft, famous for many record-setting flights. Seemingly impervious to loss by enemy defenses, a dozen Blackbirds were lost to accidents. On July ...

At Mach 6, the SR-72 can cut across radar fields of view so quickly that establishing a continuous track becomes nearly impossible. Looking less like a warplane and more like a sky monster, legendary ...