This article from yesterday - thought it would be better to put it here than try and revive my previous EM Drive thread:
https://hacked.com/s...ive-propulsion/
So, contrary to the article's title, the team from Germany was able to build a prototype that did generate thrust as is predicted by EM Drive theories, although it still appears to be violating conservation of momentum as well as a few other known laws of physics. Basically, the result is "we are seeing thrust that we can neither explain nor understand."
The beautiful thing about the EM Drive is that it generates thrust from microwaves, meaning electricity alone can generate thrust, even in the vacuum of space. This means that:
1) No liquid fuel is needed (power could. E provided from a solar panel array, a nuclear reactor or some other form of reusable, long term energy source), so that means we've got much less weight sacrificed just to get into orbit, meaning the age old problem of returning from landing missions is potentially alleviated. Let's go manned missions to Mars!
2) Space travel is potentially exponentially faster - conventional thrusters use lots of fuel in the vacuum of space to produce negligible thrust. The EM Drive is generating thrust in a vacuum, meaning it will push just as hard in space as it would in Earth's atmosphere. This means that, despite the completely unknown reason why, we are able to travel much faster than a rocket would ever have before (although this is not a Warp drive - we are not breaking FTL speeds here).
3) It is cheap. Basically a magnetron (which you can find in your microwave) that is properly calibrated and attached to a VERY carefully constructed fulstrom can generate 400 Newtons/100kW. The current scale wouldn't be great for a satellite, but you get fifteen to thirty of those babies strapped to a craft and you can go zipping around the solar system, sun to Pluto, in a matter of months.
Pretty exciting stuff. Still, since the mechanics are still widely misunderstood and it seems to still violate established laws of physics, there is a lot of skepticism and no one rushing to build anything aside from uber-science DIY'ers. Still, very interesting news all around.