 The true moment when I knew I was in space is when I felt weightless, and I was able to look out the window and see Earth from space for the first time. I felt that if we could have the leaders of the world see what I was seeing and feel what I was feeling, that I'm sure they would come up with very different policies that will preserve our environment and promote a lot more peaceful collaboration amongst nations. When you look at it from up there, you can see there is only one Earth. These lines we draw on a map that separates us does not exist. You see the Earth is moving all the time. The clouds are moving all the time. There's nothing that stays constant and there's no way you can contain problem in one place and say it's not going to spread. So the problem on the other side of the world eventually will spread to us. Being able to see something from a different scale, everything seems small enough that you felt like we can fix this. It's not as big as I thought. We can fix this problem. So it was empowering, humbling. It was a very emotional experience.