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You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.
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I hope climate science becomes the big thing. And then what I want is electrical engineers to solve the world's energy problems, energy distribution problems. I want mechanical engineers to make better transportation systems. I want chemical engineers to develop better solar panels, and so on.
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There is good evidence that Venus once had liquid water and a much thinner atmosphere, similar to Earth billions of years ago. But today the surface of Venus is dry as a bone, hot enough to melt lead, there are clouds of sulfuric acid that reach a hundred miles high and the air is so thick it's like being 900 meters deep in the ocean.
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I like to regard myself as someone who's capable of critical thought, that is to say, who can evaluate claims.
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Unlike science, creationism cannot predict anything, and it cannot provide satisfactory answers about the past.
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I say to the grownups, 'If you want to deny evolution and live in your world that's completely inconsistent with everything we've observed in the universe that's fine. But don't make your kids do it.'
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If the Earth gets hit by an asteroid, it's game over. It's control-alt-delete for civilization.
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NASA is an engine of innovation and inspiration as well as the world's premier space exploration agency, and we are well served by politicians working to keep it that way, instead of turning it into a mere jobs program, or worse, cutting its budget.
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I will assert that U.S. economic growth is in lockstep with science and technology and, by extension, science education.
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I've always loved airplanes and flight. The space program was really important to me as a kid. I still have a photo of Armstrong and Aldrin on the moon in my living room.
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As a kid at the World's Fair in 1965, I missed seeing the big global population clock roll over from 2,999,999,999 to 3 billion - I was really disappointed.
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Everything you can touch and depend on in our society goes back to science.
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Science is the key to our future, and if you don't believe in science, then you're holding everybody back.
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I worked at comedy clubs - if I can use the term 'work' - for several years. I middled at one point. I never made it; I was never a headliner. I never made enough time to write enough good material, in my opinion.
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Evolution is the fundamental idea in all of life science - in all of biology.
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I might be trying to change the world, but I also better be funny while I'm doing it. I've never lost sight of that.
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We want to get young people excited about inventing so they'll be future inventors, and change the world.
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If you look back on all the teachers that you liked, I am sure you will find they were very entertaining.
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Everyone, red state, blue state, everyone supports space exploration.
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But investment in space stimulates society, it stimulates it economically, it stimulates it intellectually, and it gives us all passion.
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You don’t need a PhD in climate science to understand what’s going on, that we have overwhelming evidence that the climate is changing. That you cannot tie any one event to that is not the same as doubt about the whole thing.
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Teaching creationism in science class as an alternative to evolution is inappropriate.
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To try to really land a spacecraft really on another world is really difficult, and if we lose that ability, it's going to be heartbreaking.
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What makes the United States great, the reason people wanted to live in the United States, move here still, is because of our ability to innovate.