We require, as a species, the difference between what is safe and unsafe to define ourselves. Be it in darkness or in light, where we are means nothing without the comparison to the other place - where we are not. And thus it is the difference between them that tells us who and what we are.

Congress often covers the exposed crotch of our human spaceflight program with the figleaf of science when it's an obvious lie to justify the pumping of billions of dollars into the belly of an ever-voracious aerospace industrial complex. And yes, of course space is dangerous.

The first credible humans-to-Mars plans are starting to weave together in public-private partnerships. In fact, I can say with some authority that this will also be the case in terms of the Moon and asteroids as well.

Rick Tumlinson Quotes