And, I think, as a kid, I had a strong motivation to do something of my life. And, I think that's the strongest motivation I really got. And, that came obviously from my parents and my grandparents

We also had to bring with us some desired scientific equipment over to the station as well as assemble new machines. For that, I had to conduct two space walks.

And, you run also video because to fly this arm, you're relying mostly on some external camera views that may be coming from the arm itself or from the station.

I think that witnessing ecological problems visible from space is one of the new and essential roles of astronauts

I've been as a pilot involved in the Gulf War. And then, in the No-Fly Zone

The last thing, and the only one that you cannot physically train for, is the psychological preparation

So, it takes a lot of chance and luck. I mean I was lucky enough to get in the program where people with the same skills never made it to the program. So keep trying.