I've known from long ago that the universe was calling me. If you were one of those annoying adults that said, 'Oh, what are you gonna be when you grow up?' I would say, 'Astrophysicist .' And then they'd walk away real quickly.

It is in the best interests of civilization and our economy and our nation to understand what objective truths are as revealed by the methods and tools of science.

If you're a scientist, and you have to have an answer, even in the absence of data, you're not going to be a good scientist.

The StarTalks - while kids can watch them, they're actually targeted at adults. Because adults outnumber kids five to one, and adults vote, and adults wield resources, and adults are heads of agencies. So if we're going to affect policy, or affect attitudes, for me, the adults have always been the target population.

Jesus Christ rose up from the tomb. Well, he's the son of God, and now he's like God's spirit at this point. Why would a spirit need to move a rock? Why not just pass through the rock? But also, why wait for the guards to go to sleep?

Research in education has shown that we remember field trips long into adulthood. I remember visiting the post office in second grade and looking at the sorting machine. I have vivid memories of that, when I don't even remember the name of the teacher who took me.

Perhaps these ancient observatories like Stonehenge perennially impress modern people because modern people have no idea how the Sun, Moon, or stars move. We are too busy watching evening television to care what's going on in the sky.