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. Scott Kelly findgreatlife Change image and share on social
There are definitely parts of Asia, Central America that when you look at them from space, you're always looking through a haze of pollution. As far as the atmosphere is concerned, and being able to see the surface, you know, I would say definitely those areas that I mentioned look kind of sick. Scott Kelly americaareaasia share on social
It's for us to take care of the air we breathe and the water we drink. And I do believe we have an impact on that, and we do have the ability to change it if we make the decision to. Scott Kelly abilityairbreathe Change image and share on social
If you go on a journey to Mars and get into deep space, there is several hundred times, maybe 300 times the radiation. Scott Kelly deephundredjourney Change image and share on social
It is a little bit surreal to know that you are in your own little spaceship, and a few inches from you is instant death. Scott Kelly bitedeathinch Change image and share on social
Flying in space is a privilege, whether it's the first time or the fourth time. Scott Kelly flyfourthprivilege Change image and share on social
This is a really big space station. We do a lot of various kinds of work here, different kinds of science experiments; we have over 400 different experiments going on at any one time in different areas, from basic science research to medical technology, that hopefully will benefit more people on Earth. Scott Kelly areabasicbenefit share on social
When we do things that are really hard, we can achieve great things - and that has worked as a great model for me. Scott Kelly achievegreathard Change image and share on social
People do really well on space missions, but it's the physiological, the medical stuff, the stuff like radiation, loss of bone mass and muscle mass and density. It's those things that we need to figure out. Scott Kelly bonedensityfigure share on social
What we get from building a space station, the economic return, the science return, is very, very important to our nation, to our economy. Scott Kelly buildeconomiceconomy Change image and share on social