By refocusing our space program on Mars for America's future, we can restore the sense of wonder and adventure in space exploration that we knew in the summer of 1969. We won the moon race; now it's time for us to live and work on Mars, first on its moons and then on its surface.

Ray Bradbury is one who is contributing to the understanding of the imagination and the curiosity of the human race.

We need to begin thinking about building permanence on the Red Planet, not just have voyagers do some experiments, plant a flag and claim success. Having them go there, repeat this, in my view, is dim-witted. Why not stay there?

We really didn't devote a lot of time to investigating the scariest aspects of our flight. It was more challenging and productive to concentrate on the remedies, and leave things that couldn't be solved to happen without thinking about them. There is a morbid human curiosity associated with tragic death-producing events. Though naturally, this needs to be kept in perspective.

I know: If you're looking down at Earth, you're looking through an atmosphere that has a bit of haze in many places and not just occasional clouds.

The life expectancy of people going to Mars may be decreased by the higher level of radiation that they receive.

Weve got to go [back to the moon]. But we dont want to stay too long. ... The ultimate goal is Mars.