Universe
in sentence
1546 examples of Universe in a sentence
The first time was in 1929, when an astronomer called Edwin Hubble showed that the
universe
was expanding, leading to the ideas of the Big Bang.
A second revolution happened 70 years later, when two groups of astronomers showed that the
universe
wasn't just expanding, it was accelerating, a surprise like throwing up a ball into the sky and finding out the higher that it gets, the faster it moves away.
Small changes turn our understanding of the
universe
on its head.
So 42 supernovae, slightly too faint, meaning slightly further away, requiring that a
universe
must not just be expanding, but this expansion must be accelerating, revealing a component of our
universe
which we now call dark energy, a component that drives this expansion and makes up 68 percent of the energy budget of our
universe
today.
Or, they look at large scales and change how gravity and general relativity work, or they say our
universe
is just one of many, part of this mysterious multiverse, but all of these ideas, all of these theories, amazing and admittedly some of them a little crazy, but all of them consistent with our 42 points.
And so, by combining these supernova data with other measures of cosmology, we'll progressively rule out the different ideas and theories of dark energy until hopefully at the end of this survey around 2030, we would expect to hopefully see a theory for our universe, a fundamental theory for the physics of our universe, to gradually emerge.
But if looking through tens of thousands of galaxies revealed 42 supernovae that turned our understanding of the
universe
on its head, when we're working with billions of galaxies, how many more times are we going to find 42 points that don't quite match what we expect?
Why does the
universe
exist?
John Archibald Wheeler, one of the great physicists of the 20th century, the teacher of Richard Feynman, the coiner of the term "black hole," he said, "I want to know how come the quantum, how come the universe, how come existence?"
And my friend Martin Amis — sorry that I'll be doing a lot of name-dropping in this talk, so get used to it — my dear friend Martin Amis once said that we're about five Einsteins away from answering the mystery of where the
universe
came from.
So maybe physics can fill this blank, and indeed, since about the late 1960s or around 1970, physicists have purported to give a purely scientific explanation of how a
universe
like ours could have popped into existence out of sheer nothingness, a quantum fluctuation out of the void.
Why quantum field theory that describes a
universe
with a certain number of forces and particles and so forth?
So this is a problem, believe it or not, that reflective physicists really think a lot about, and at this point they tend to go metaphysical, say, well, maybe the set of laws that describes our universe, it's just one set of laws and it describes one part of reality, but maybe every consistent set of laws describes another part of reality, and in fact all possible physical worlds really exist, they're all out there.
I think that Brian Greene is in the audience, and he has written a book called "The Elegant Universe."
He claims that the
universe
we live in mathematically is very elegant.
It's a pious hope, I wish it were true, but I think the other day he admitted to me it's really an ugly
universe.
It's not an elegant
universe.
At the beginning of the week, we got the exciting information that the theory of inflation, which predicts a big, infinite, messy, arbitrary, pointless reality, it's like a big frothing champagne coming out of a bottle endlessly, a vast universe, mostly a wasteland with little pockets of charm and order and peace, this has been confirmed, this inflationary scenario, by the observations made by radio telescopes in Antarctica that looked at the signature of the gravitational waves from just before the Big Bang.
The
universe
is absurd, but we can still construct a purpose, and that's a pretty good one, and the overall mediocrity of reality kind of resonates nicely with the mediocrity we all feel in the core of our being.
You're not astonished at the existence of the
universe
and you're in good company.
Bertrand Russell said, "I should say the
universe
is just there, and that's all."
There are more than a trillion galaxies in the
universe.
This galaxy is so peculiar, that it challenges our theories and our assumptions about how the
universe
works.
Further research into how this extremely rare galaxy was formed can provide us with new clues on how the
universe
works.
I was still trying to take in the notion that these titans, these masters of the universe, in their spare time watch Harry Potter movies, when Mr. Milliken thought he would win the argument by saying, "You just think it's so good because you didn't read the book."
And let's make it look down here, rather than to the far reaches of the
universe.
The
universe
is wonderful, but we have a practical reality, which is we live in an unknown cosmos, and we're ignorant about it.
The stability and comfort that we enjoy, despite the droughts of the Negro River, and all the heat and cold and typhoons, etc., there is nothing like it in the universe, that we know of.
Curiosity, to me, is about our connection with the world, with the
universe.
So, the thing is, I plunged into this
universe
and have not stopped working since.
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