To be fair it's not solely a Brit thing. Every time anyone else has studied air-breathing rockets they find that the engine is optimized by getting rid of the air-breathing component. And horizontal ...

With their thrilling sci-fi aesthetics, spaceplanes are an attractive alternative to rockets. They are attractive in ...

The fastest air-breathing vehicle ever built was the NASA X-43. Only three of these aircraft were built, with one being destroyed and two operating successfully. The X-43 testbed aircraft measured 12 ...

On May 14, 2025 Venus Aerospace became the first in the world to successfully fly a high-thrust rotating detonation rocket engine (RDRE) — achieving what no government or private entity had done ...

Sierra Space completed a test campaign on Vortex 35,000 lbf liquid engine designed for upper-stage applications. Credit: Sierra Space WASHINGTON — The U.S. Air Force awarded Sierra Space a $16 million ...

There have been published papers by the Air Force Research Lab and NASA on rotating detonation engines having 10% or more efficiency gains. A rotating detonation engine (RDE) uses a form of pressure ...

There is no shortage of older or younger companies working as you're reading this on some kind of hypersonic aircraft design. Most of these ideas come from the North American continent, and they are ...

Welcome to Edition 8.05 of the Rocket Report! One of the most eye-raising things I saw this week was an online update from NASA’s Marshall Space Flight Center touting its work on cryogenic propellant ...