Because of his military service, Dad was buried in Arlington National Cemetery.

It's not easy to get human beings into orbit. So far only three nations have been able to do that, with all the resources that they put together. And I'm just a little skeptical that that's going to be done by the private sector without making use of what has been done by the government.

By venturing into space, we improve life for everyone here on Earth - scientific advances and innovations that come from this kind of research create products we use in our daily lives.

Space architectures capable of supporting a permanent human presence on Mars are extraordinarily complex, with many different interdependent systems.

The guys who walk on Mars are going to be historic.

I grew up in a country that I thought was special. And it was.

Many say exploration is part of our destiny, but it's actually our duty to future generations and their quest to ensure the survival of the human species.