The Invictus project is leveraging tech that the now-defunct British company Reaction Engines developed for a huge space ...

Pioneering propulsion technologies developed by failed UK firm Reaction Engines could live on, with the sale of its assets to a preferred bidder now seemingly in its final stages, the insolvency ...

Standing up Rocket Report: SpaceX’s 500th Falcon launch; why did UK’s Reaction Engines fail? SpaceX's rockets make a lot more noise, but the machinations of Texas' newest city are underway.

COLORADO SPRINGS, Colorado—Boom Supersonic plans to start core tests of its Symphony engine by the end of the year at a Colorado site formerly used by failed hypersonic propulsion company ...

I doubt that Reaction Engines could ever have made this work, either technically or commercially. Such a spaceplane would be very flexible and would require very little infrastructure.