If you're an adult and you choose not to believe in science, fine, but please don't prevent your children from learning about it and letting them draw their own conclusions.

I like to regard myself as someone who's capable of critical thought, that is to say, who can evaluate claims.

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.

Everyone, red state, blue state, everyone supports space exploration.

At the time I finished high school, I was determined to study biology, deeply convinced to eventually be a researcher.

A certain number of people seek power over other people in a desperate attempt to find themselves. They fail, for self-discovery is spiritual in nature, not social or political. Authoritatively telling other people what to do is their distraction from an inner emptiness they can never fill.

I want to have all that scientific information that we're building be used in designing the future so that people who make geographic decisions - and here it's not just land-use planners, but it's everyone: foresters, transportation engineers, people who buy a house - can analyze all of these information layers and design a future.

Science without religion is lame, religion without science is blind.