Why hasn't anyone came up with a new kind of propulsion to get us into space easier and cheaper?
You would think they would be working hard on this but all you see are old rocket engines that are just as wasteful and expensive as ever, they only seem to care about satellite engines which are efficient but useless at getting us into orbit, it's pretty pathetic really, it's 2012 and we haven't been back to the moon or invented anything new to get us into space.![]()
Have you researched at all? There are plenty of new ideas coming out/being tested. Its not.exactly easy stuff considering the technical problems. Google SABRE engine.