Just a couple of decades ago, aviation had some rules. If you wanted to fly fast within the atmosphere, you used a jet engine. The champion here was the SR-71 Blackbird, designed by Lockheed Martin, ...

In March 2025, a missile launched from a test range in the Pacific arced into the upper atmosphere, separated its rocket booster, and released an unpowered wedge-shaped glide body that streaked toward ...

Pratt & Whitney Rocketdyne, a United Technologies Corp. (NYSE:UTX) company, is a step closer to flight testing the world’s first hypersonic hydrocarbon-fueled and -cooled scramjet engine. The X-51A ...

Today scramjet propulsion is the subject of continued study, as it appears to be one of the most promising methods of powering hypersonic weapons and aircraft. So, you may be surprised to learn that ...