It's nice to know that these things are progressing, but the details don't get me too excited: Skylon has been in development in the UK in various guises for n

It's nice to know that these things are progressing, but the details don't get me too excited: Skylon has been in development in the UK in various guises for nearly 30 years. And what's the latest milestone? The UK Space Agency (UKSA) had commissioned Esa to evaluate the design, and the European organisation's staff reported on Tuesday that they had not seen any obvious flaws. Well that's just great, guys! So you'll let me know when there's a working prototype, right? Great. I also liked: But REL says it has developed an anti-frost solution that will allow the heat exchanger to run and run. Esa's technical staff have witnessed this "secret technology" on the lab bench and can confirm it works. I wonder whether this fuel-system de-icing system is also a disk operating system and genetic lifeform.