I will agree with Liberator on one main aspect, we need to stop re-hashing the same old techniques over and over, and start thinking at right-angles with regards to how we approach the exploration of Space itself, rockets were fine in the 1950's and the following decades, but we need to stop looking at brute-forcing our way into Space and start looking more seriously at the other options available, magnetic accelerators, space-elevators, the theories are there, but so much is being spent on rockets that realising these theories, or even testing them in real life applications is being held back through lack of funding.
To my mind, stepping back for 5 years, and re-evaluation our approach could save untold billions of dollars, and be far less harmful to the environment in the long run. And we really need to start thinking in the long run.