The methods and tools of science perennially breach barriers, granting me confidence that our epic march of insight into the operations of nature will continue without end.

As important as the civil rights movement was, I think what will rise to the top is that we left Earth in that time.

I bought it, I read it, and I heeded its advice. I remain unabducted.

To achieve this density of a neutron star at home, just cram a herd of 50 million elephants into the volume of a thimble.

I try to show the public that chemistry, biology, physics, astrophysics is life. It is not some separate subject that you have to be pulled into a corner to be taught about.

Civilization just takes it as a given that the whole world was flooding. Then science came and you had geology and modern astrophysics, and time became well understood going back billions of years. So enlightened religious people, as a necessity, had to shed the magical elements of the Bible. A little known fact is that Thomas Jefferson did just that. There's something called the Jefferson Bible. It's not widely publicized because it sort of conflicts with certain people's ideas of what the founding fathers were.

Whether or not you can become great at something, you can always become better.