Intuitively you want some place [such as your phone] to store phone numbers, so you have that part of your brain to do other tasks.

But investment in space stimulates society, it stimulates it economically, it stimulates it intellectually, and it gives us all passion.

You and I are made of stardust. We are the stuff of exploded stars. We are therefore, at least 1 way that the Universe knows itself. That, to me, is astonishing.

When we sit down to draw or paint the sun's rays, we generally use yellow because in the morning and the evening with the blue light scattered away so strongly you're left with a little bit of red and it comes out yellowish.

My father was a very good Boy Scout. He was very skilled with knots, and he showed me how to tie a bow tie.

Some of the most wonderful aspects and consequences of evolution have been discovered only recently. This is in stark contrast to creationism, which offers a static view of the world, one that cannot be challenged or tested with reason. And because it cannot make predictions, it cannot lead to new discoveries, new medicines, or new ways to feed all of us.

No matter what you may believe spiritually or otherwise, the Earth is clearly not 6,000 or 10,000 years old.