Einstein's theory, we know that it fails. In advance, we know it fails. So that a deeper understanding of nature is awaiting us.

Americans live in a free country, which allows you to believe what you want. Because you think that something is true does not require that it is objectively true. The value of science concerning itself with objective truths is that we can make decisions and statements that affect everyone, which is why legislation really should be based on objective truths, not what is going on in your head.

I think if everyone had the luxury to pursue a life of exactly what they love, we would all be ranked as visionaries and brilliant.

I knew my interest in the universe and I owned a telescope that I bought with money I earned by walking dogs. 50 cents per walk, per dog, and that accumulated quickly. I bought a camera, a telescope. I taught myself astrophotography. I did all this.

As a scientist, I want to go to Mars and back to asteroids and the Moon because I'm a scientist. But I can tell you, I'm not so naive a scientist to think that the nation might not have geopolitical reasons for going into space.

When we went to the moon and realized that the Soviet Union had no realistic plans of getting to the moon, then we stopped going to the moon.

If Pizza sizes were given in area not diameter, you'd see instantly that a 7 inch is less than half the size of a 10 inch pie