No manned aircraft in operational service has matched the remarkable long-distance Mach 3 cruises of the Blackbird.
Here's What You Need to Know: The SR-72 depicted in Lockheed’s concept art was described as capable of cruising at six times the speed of sound.
Hypersonic weapons—those capable of flying over five times the speed of sound—are the hot new buzz word of defense industrial complexes across the globe. China, Russia and the United States have all...
Week 1 of the NFL season is in full swing with 13 games Sunday afternoon. Follow along for live updates.
On the 48th anniversary of the military coup against Chilean President Salvador Allende, never-before-seen archive posts by the Australian Secret Intelligence Service show the CIA requested and received support. Peter Kornbluh reports.