There really is for humankind there's really no such thing as race. There's different tribes but not different races. We're all one species.

Bicycling is a big part of the future. It has to be. There's something wrong with a society that drives a car to workout in a gym.

Science rules!

Science is the key to our future, and if you don't believe in science, then you're holding everybody back.

Evolution is the fundamental idea in all of life science - in all of biology.

Humans Control the Earth; Nerds Should Guide the Humans.

The US Navy has several people on every ship that can navigate by the stars. They don’t fool with that.

Any differences we traditionally associate with race are a produce of our need for vitamin D and our relationship to the Sun.

NASA is an engine of innovation and inspiration as well as the world’s premier space exploration agency, and we are well served by politicians working to keep it that way, instead of turning it into a mere jobs program, or worse, cutting its budget.

From time to time, I meet someone who will say something like, “I am not afraid of dying.” I don’t buy it. Everyone is afraid of dying. It’s part of the instinct that helps us survive as a species. It’s a crucial feature of human evolution. It’s also, I strongly suspect, a crucial reason why so many people have trouble believing evolution is true. Life can be ironic like that.