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Private enterprise can never lead a space frontier. It's not possible because a space frontier is expensive, it has unknown risks and it has unquantified risks.
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Darwin's theory of evolution is a framework by which we understand the diversity of life on Earth. But there is no equation sitting there in Darwin's 'Origin of Species' that you apply and say, 'What is this species going to look like in 100 years or 1,000 years?' Biology isn't there yet with that kind of predictive precision.
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You can't train kids in a world where adults have no concept of what science literacy is. The adults are gonna squash the creativity that would manifest itself, because they're clueless about what it and why it matters. But science can always benefit from the more brains there are that are thinking about it - but that's true for any field.
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All of the full moons for the entire year are special in that they have particular names.
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It has been said that every great emerging scientific truth goes to three phases: First people say: 'It can't be true'. Second they say: 'It conflicts with the bible.' Third they say: 'It's true all along.'
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You don't take a dead cat to the vet. I mean you might, but why?
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The center line of science literacy - which not many people tell you, but I feel this strongly, and I will go to my grave making this point - is how you think.
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Science is basically an inoculation against charlatans.
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Every account of a higher power that I've seen described, of all religions that I've seen, include many statements with regard to the benevolence of that power. When I look at the universe and all the ways the universe wants to kill us, I find it hard to reconcile that with statements of beneficence.
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Not enough people in this world, I think, carry a cosmic perspective with them. It could be life-changing.
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What people are really after is, what is my stance on religion or spirituality or God? And I would say, if I find a word that came closest, it would be agnostic.
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Space exploration is a force of nature unto itself that no other force in society can rival.
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I've spent quality time in the aerospace community, with my service on two presidential commissions, but at heart, I'm an academic. Being an academic means I don't wield power over person, place or thing. I don't command armies; I don't lead labor unions. All I have is the power of thought.
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No astrophysicist would deny the possibility of life. I think we're not creative enough to imagine what life would be like on another planet. Show me a dead alien. Better yet, show me a live one!
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We live in the kind of society where, in almost all cases, hard work is rewarded.
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I've been a minimalist my whole life, even if you wouldn't know it from my office.
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Just think for how long humanity was controlled by mystical, magical thinking - the diseases and suffering that led to. We managed to survive, but just barely. It wasn't pretty.
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My parents didn't know much science; in fact, they didn't know science at all. But they could recognize a science book when they saw it, and they spent a lot of time at bookstores, combing the remainder tables for science books to buy for me. I had one of the biggest libraries of any kid in school, built on books that cost 50 cents or a dollar.
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Asteroids have us in our sight. The dinosaurs didn't have a space program, so they're not here to talk about this problem. We are, and we have the power to do something about it. I don't want to be the embarrassment of the galaxy, to have had the power to deflect an asteroid, and then not, and end up going extinct.
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For me, the most fascinating interface is Twitter. I have odd cosmic thoughts every day and I realized I could hold them to myself or share them with people who might be interested.
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There's a lot to do in space. I want to learn more about the greenhouse effect on Venus, about whether there was life on Mars, about the environment in which Earth and the Sun is immersed, the behavior of the Sun.
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The supermoon is a 16-inch pizza compared with a 15-inch pizza. It's a slightly bigger moon; I ain't using the adjective 'supermoon.'
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Adults, who outnumber kids four or five to one, are in charge. We wield the resources, run the world, and completely thwart kids' creativity.
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Computers have proved to be formidable chess players. In fact, they've beaten our top human chess champions.