Scott Kelly

It's a combination of science, maintenance, and general housekeeping. And then, occasionally, robotics activities or a spacewalk you might get to do.

There's certainly a loss of connection with folks on the ground who I care for and love and I want to spend time with.

As far as whether there is life there on Mars or whether there was actually ever life there, I don't know. It would be great to find out, though.

Well, I actually wrote her a letter a couple of days ago congratulating her. The tone I tried to convey in the letter is, look, you are a part of a great American historical process.

It's good to like yourself, and that only comes from hard work, from doing. But vanity is dangerous; it can trip you badly.

Nothing that is worth doing can be achieved in a lifetime; therefore we must be saved by hope.