A Quote by Neil deGrasse Tyson
A supernova is one of the most powerful explosions in the universe. It's so luminous, it can be seen across billions of light years. It releases as much energy in an instant as our sun will produce over its 10-billion-year lifetime.
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There is much that science doesn't understand, many mysteries still to be resolved. In a Universe tens of billions of light-years across and some ten or fifteen billion years old, this may be the case forever. We are constantly stumbling on new surprises
I never said it. Honest. Oh, I said there are maybe 100 billion galaxies and 10 billion trillion stars. It's hard to talk about the Cosmos without using big numbers. I said "billion" many times on the Cosmos television series, which was seen by a great many people. But I never said "billions and billions." For one thing, it's too imprecise. How many billions are "billions and billions"? A few billion? Twenty billion? A hundred billion? "Billions and billions" is pretty vague. When we reconfigured and updated the series, I checked-and sure enough, I never said it.
Planet Earth is estimated to have a lifetime of nine billion years. And we're right smack in the middle of our lifetime. We've been in the universe for 4.5 billion years. So, that should mean something. We should sort of take a look at where we came from and where we are going.
Even places that have been shrouded in darkness for billions of years can be illuminated. Even a stone from the bottom of a river can be used to produce fire. Our present sufferings, no matter how dark, have certainly not continued for billions of years--nor will they linger forever. The sun will definitely rise. In fact, its ascent has already begun.
I tell my students, with a feeling of pride that I hope they will share, that the carbon, nitrogen, and oxygen that make up ninety-nine per cent of our living substance were cooked in the deep interiors of earlier generations of dying stars. Gathered up from the ends of the universe, over billions of years, eventually they came to form, in part, the substance of our sun, its planets, and ourselves. Three billion years ago, life arose upon the earth. It is the only life in the solar system.
What we see of the universe is vast. We know that the universe is something like 90 billion light-years across.
Whenever I saw the sun, I reminded myself that I was looking at a star. One of over a hundred billion in our galaxy. A galaxy that was just one of billions of other galaxies in the observable universe. This helped me keep things in perspective.
Most educated people are aware that we are the outcome of nearly 4 billion years of Darwinian selection, but many tend to think that humans are somehow the culmination. Our sun, however, is less than halfway through its lifespan. It will not be humans who watch the sun’s demise, 6 billion years from now. Any creatures that then exist will be as different from us as we are from bacteria or amoebae.
Radio Astronomy has added greatly to our understanding of the structure and dynamics of the universe. The cosmic microwave background radiation, considered a relic of the explosion at the beginning of the universe some 18 billion years ago, is one of the most powerful aids in determining these features of the universe.
Our sun is one of a 100 billion stars in our galaxy. Our galaxy is one of billions of galaxies populating the universe. It would be the height of presumption to think that we are the only living thing in that enormous immensity.
Pure science - this vision of the universe as 15 billion light years across - I am bedazzled and awed by it.
The brain is a three pound mass you can hold in your hand that can conceive of a universe a hundred billion light-years across.
I supported the Korean Trade Agreement in 2011. They promised - when it was signed, President [Barak] Obama said it would increase our exports to Korea by $10 billion a year.That creates jobs in America.Since - last year, 2015, there was no increase, like instead of billions of dollars there was like a $100 million increase in our exports to Korea, whereas as their imports to us went up $12 billion, and our trade deficit increased 240 percent.
We might expect intelligent life and technological communities to have emerged in the universe billions of years ago. Given that human society is only a few thousand years old, and that human technological society is mere centuries old, the nature of a community with millions or even billions of years of technological and social progress cannot even be imagined. ... What would we make of a billion-year-old technological community?
I remind myself that the universe is 15 billion years old, and I'm only 46 years old, so my perspective is sort of limited and fear-based and skewed. So I sort of turn things over to whatever you want to call it - whether it's God, or the universe or the spirit of the universe - and I just sort of turn things over to God and hope that this spirit that has been around for 15 billion years will have a better understanding of how things should be than I do.
The U.N.'s current projection is that humanity will number 9.3 billion individuals in 2050 and then hit 10.1 billion by 2100. Meanwhile, our energy resources are dwindling, and droughts threaten our food supplies.
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