Bill Nelson: “I really believe that we can get to yes because in the first 2 years of my tenure, we did get to yes.”

It is a real problem, and we are going to have some catastrophic consequences if we cannot get nations that are launching things into space to provide enough fuel to have a controlled reentry.

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

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.

I would say that there is a significant difference of opinion about that.