Artificial selection turned the wolf into the shepherd, and the wild grasses into wheat and corn. In fact, almost every plant and animal that we eat today was bred from a wild, less edible ancestor. If artificial selection can work such profound changes in only ten or fifteen thousand years, what can natural selection do operating over billions of years? The answer is all the beauty and diversity of life.

We need to look at NASA, not as a handout, but as an investment.

It turns out that the history of astrophysics is where we perfected time keeping.

I never got into 'Star Wars.' Maybe because they made no attempt to portray real physics. At all.

Today, scientists sound the alarm on other environmental dangers. Vested interests still hire their own scientists to confuse the issue. But in the end, nature, will not be fooled.

Everyone has all different experiences in school. I just know that throughout my life, at no time did any teacher ever point to me and say, hey. He'll go far.

When we try to look farther into the universe we come to what appears to be the end of space but actually it's the beginning of time.