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There are thousands of asteroids whose orbit in the Solar System crosses that of Earth. And we have a little acronym for them - NEOs: near Earth objects. And our biggest goal is to try to catalogue them, so we know in advance if one is going to put us at risk.


Neil deGrasse Tyson

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NEIL DEGRASSE TYSON I've been a minimalist my whole life, even if you wouldn't know it from my office.
NEIL DEGRASSE TYSON There's a lot of memorization that goes on in school. You memorize vocabulary words and all thes...
NEIL DEGRASSE TYSON You have people who believe they are scientifically literate but, in fact, are not. And I don't ...
NEIL DEGRASSE TYSON Part of what it is to be scientifically-literate, it's not simply, 'Do you know what DNA is?...
NEIL DEGRASSE TYSON We didn't build the interstate system to connect New York to Los Angeles because the West Coast ...
NEIL DEGRASSE TYSON Dinosaurs are extinct today because they lacked opposable thumbs and the brainpower to build a space...
NEIL DEGRASSE TYSON So the history of discovery, particularly cosmic discovery, but discovery in general, scientific dis...
NEIL DEGRASSE TYSON It's the great tragedy - people employed in ways that don't fully tap everything they do bes...
NEIL DEGRASSE TYSON Humans aren't as good as we should be in our capacity to empathize with feelings and thoughts of...
NEIL DEGRASSE TYSON Most of what Einstein said and did has no direct impact on what anybody reads in the Bible. Special ...
NEIL DEGRASSE TYSON The urge to miniaturize electronics did not exist before the space program. I mean our grandparents ...
NEIL DEGRASSE TYSON In nature, when you conduct science, it is the natural world that is the ultimate decider in what is...
NEIL DEGRASSE TYSON We spend the first year of a child's life teaching it to walk and talk and the rest of its life to s...
NEIL DEGRASSE TYSON There is a fundamental reason why we look at the sky with wonder and longing—for the same reason t...
NEIL DEGRASSE TYSON You could also ask who’s in charge. Lots of people think, well, we’re humans; we’re the most i...
NEIL DEGRASSE TYSON But you can’t be a scientist if you’re uncomfortable with ignorance, because scientists live at ...
NEIL DEGRASSE TYSON Robots are important also. If I don my pure-scientist hat, I would say just send robots; I'll stay d...
NEIL DEGRASSE TYSON These philosophically fun ideas usually satisfy nobody. Nonetheless, they remind us that ignorance i...
NEIL DEGRASSE TYSON The gravitational waves of the first detection were generated by a collision of black holes in a gal...
NEIL DEGRASSE TYSON There’s as many atoms in a single molecule of your DNA as there are stars in the typical galaxy. W...
NEIL DEGRASSE TYSON Adults, who outnumber kids four or five to one, are in charge. We wield the resources, run the world...
NEIL DEGRASSE TYSON Who gets to celebrate this cosmic view of life? Not the migrant farmworker. Not the sweatshop worker...
NEIL DEGRASSE TYSON I study the universe. It's the second oldest profession. People have been looking up for a long ...
NEIL DEGRASSE TYSON Private enterprise in the history of civilization has never led large, expensive, dangerous projects...
NEIL DEGRASSE TYSON Private enterprise can never lead a space frontier. It's not possible because a space frontier i...
NEIL DEGRASSE TYSON In 2002, having spent more than three years in one residence for the first time in my life, I got ca...
NEIL DEGRASSE TYSON The knowledge that the atoms that comprise life on earth - the atoms that make up the human body, ar...
NEIL DEGRASSE TYSON The more I learn about the universe, the less convinced I am that there's any sort of benevolent for...
NEIL DEGRASSE TYSON When asked about which scientist he'd like to meet, Neil deGrasse Tyson said, "Isaac Newton. No ques...
NEIL DEGRASSE TYSON When scientifically investigating the natural world, the only thing worse than a blind believer is a...
NEIL DEGRASSE TYSON I am convinced that the act of thinking logically cannot possibly be natural to the human mind. If i...
NEIL DEGRASSE TYSON While the Copernican principle comes with no guarantees that it will forever guide us to cosmic trut...
NEIL DEGRASSE TYSON The atoms of our bodies are traceable to stars that manufactured them in their cores and exploded th...
NEIL DEGRASSE TYSON To learn that it's easier to be told by others what to think and believe than it is to think for you...
NEIL DEGRASSE TYSON Unlike what you may be told in other sectors of life, when observing the universe, size does matter,...
NEIL DEGRASSE TYSON It's always interesting just to see how the human mind is relating to the natural universe, and ...
NEIL DEGRASSE TYSON It's actually the minority of religious people who rejects science or feel threatened by it or w...
NEIL DEGRASSE TYSON Most religious people in America fully embrace science. So the argument that religion has some issue...
NEIL DEGRASSE TYSON Where there's water on Earth, you find life as we know it. So if you find water somewhere else, ...
NEIL DEGRASSE TYSON The history of exploration across nations and across time is not one where nations said, 'Let...
NEIL DEGRASSE TYSON We live in the kind of society where, in almost all cases, hard work is rewarded.
NEIL DEGRASSE TYSON With regard to robots, in the early days of robots people said, 'Oh, let's build a robot'...
NEIL DEGRASSE TYSON All Plutophiles are based in America. If you go to other countries, they have much less of an attach...
NEIL DEGRASSE TYSON If you slid Pluto to where Earth is right now, heat from the sun would evaporate that ice, and it wo...
NEIL DEGRASSE TYSON Half of my library are old books because I like seeing how people thought about their world at their...
NEIL DEGRASSE TYSON Keep in mind that if you take a tour through a hospital and look at every machine with on and off sw...
NEIL DEGRASSE TYSON We define ourselves as intelligent. That's odd, because we're doing the definition - We'...
NEIL DEGRASSE TYSON Being at the top of your game intellectually, philosophically, politically, is not a forever thing.
NEIL DEGRASSE TYSON I think the greatest of people that have ever been in society, they were never versions of someone e...
NEIL DEGRASSE TYSON There's something about witnessing something in the sky that makes people think they're seei...
NEIL DEGRASSE TYSON I lose sleep at night wondering whether we are intelligent enough to figure out the universe. I don&...
NEIL DEGRASSE TYSON I'm fascinated by the deaths of stars and the havoc they wreak on their environments.
NEIL DEGRASSE TYSON