To design an in-house, disruptive engine that would cut launch costs. The target: $5 million. NASA calls it a breakthrough, and Elon Musk calls it awesome. Why? Because a small team of engineers at NASA just tested what is being called a new type of rocket engine that can operate much more efficiently than anything currently on Earth. And if you’re thinking, how does one top something like that? Well…what if I told you that there are plans to make it even better? Much better.