Bill Nelson: “You are absolutely correct.”

It is the research and development that allows this country to move forward.

One of the reasons you and I were able to accomplish so much on this committee is both of us worked very hard to keep politics out of NASA and to focus on the core mission of exploration.

All of us have a responsibility to protect our home planet. After all, it's the only one we have.

It will fly supersonic but its design is such a radical design, that instead of pushing the bow wave going through the atmosphere, as you go from subsonic to supersonic, which causes that audible sound that goes 'boom, boom,' it will…