National Security Journal on MSN
The Mach 6.7 X-15 Rocket Plane Has A Message for the U.S. Air Force
America built the X-15 to get flight data in the unknown between airplanes and spacecraft. -The rocket-powered, Inconel-X research plane, air-dropped from a B-52 and driven by a throttleable XLR99, ...
Still can’t figure it out? I have today’s Wordle answer right here, below. But first, one more thing: Let’s take a look at four hints that could help you find the solution, without giving it away, so ...
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