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.

As the Internet of things advances, the very notion of a clear dividing line between reality and virtual reality becomes blurred, sometimes in creative ways.

I've had a great passion for video games for as long as I can remember. Growing up, 'The Legend of Zelda: Ocarina of Time' was one of my all-time favorites. My brother and I ran up quite a bill calling the 1-900 numbers for tips on those games before the Internet provided game guides.

A lot of times, you think of things as being science fiction, but the creation of the ideas makes you want to solve them. Then, in solving them, they give us greater capability.

A theory not only explains the world we see, it lets us imagine other worlds, and, even more significantly, lets us act to create those worlds. Developing everyday theories, like scientific theories, has allowed human beings to change the world.