Prefer Newsweek on Google to see more of our trusted coverage when you search. Russia's Foreign Minister Sergey Lavrov has declared that Moscow is prepared to employ "all means" to defend its ...
Key Points - NASA's X-43A hypersonic research vehicle, part of the "Hyper-X" program, still holds the world record for an air-breathing aircraft, achieving a speed of Mach 9.64 (6,363 mph) in its ...
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Florida launch fuels Dark Eagle hypersonic missile test speculation
A rocket launch from Cape Canaveral Space Force Station has triggered widespread speculation that the U.S. Army conducted a ...
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