Brian Greene Quotes

Although we don't know what is outside our universe, astronomers still wonder. Several pictures of what there might be have been dreamed up. An interesting one, called multiverse, has lots of universes. Picture it as a foam of bubbles. Our universe would be one bubble, and we'd be surrounded by lots of other bubbles.

Physics grapples with the largest questions the universe presents. 'Where did the totality of reality come from?' 'Did time have a beginning?'

There may have been many big bangs, one of which created our universe. The other bangs created other universes.

About the 50th hour, I was going to start thinking about the edge of the universe. Is there an edge? Is this an envelope we're living inside of, or no, does it go onto infinity in both time and space? And there's nothing like swimming for 50 hours in the ocean that gets you thinking about things like this.

The word 'universe' is obviously not intended to have a plural, but science has evolved in such a way that we need a plural noun for something similar to what we ordinarily call our universe.

There is nothing bigger or older than the universe.

There was no 'before' the beginning of our universe, because once upon a time there was no time.

They say the universe is expanding. That should help with the traffic.

Something pretty mysterious had to give rise to the origin of the universe.

The Big Bang theory says nothing about what banged, why it banged, or what happened before it banged.

And what we know, or think we know, about the universe of space and time is changing very quickly.

It was only about sixty years ago that the expansion of the universe was first observed.

First of all, the Big Bang wasn't very big. Second of all, there was no bang. Third, Big Bang Theory doesn't tell you what banged, when it banged, how it banged. It just said it did bang. So the Big Bang theory in some sense is a total misnomer.

Scientists say, 'There is no such thing as time; gravity is a dust from another universe, and outside our own universe are many, many universes in all directions.' They speculate that attached to these universes are probably 6,000 planets identical to Earth. So are there things living out there? Animals, people, anything?

We have never observed infinity in nature. Whenever you have infinities in a theory, that's where the theory fails as a description of nature. And if space was born in the Big Bang, yet is infinite now, we are forced to believe that it's instantaneously, infinitely big. It seems absurd.

Philosophically, the universe has really never made things in ones. The Earth is special and everything else is different? No, we've got seven other planets. The sun? No, the sun is one of those dots in the night sky. The Milky Way? No, it's one of a hundred billion galaxies. And the universe - maybe it's countless other universes.

According to 'M' theory, ours is not the only universe. Instead, 'M' theory predicts that a great many universes were created out of nothing.

Now, what space ultimately is - I should confess, I think most physicists believe - we don't yet know.

The predominant theory of the origin of the universe is the Big Bang.

In 50 years - or 20 years, or 200 years - our current epistemic horizon (the Big Bang, roughly) may look as parochial as the horizon Newton had to settle for in his day, but no doubt there will still be good questions whose answers elude us.

The universe never did make sense; I suspect it was built on government contract.

From a scientific point of view, our mission is to seek answers to the fundamental questions about the universe. Many are open - we don't know about dark matter, which accounts for a quarter of the universe's matter, nor do we know why there's antimatter.

Evolutionary cosmology formulates theories in which a universe is capable of giving rise to and generating future universes out of itself, within black holes or whatever.

There was a time when 'universe' meant 'all there is.' Everything. The whole shebang. The notion of more than one universe, more than one everything, would seemingly be a contradiction in terms.

The limitless content of our universe might be only one instance of a large (and possibly infinite) number of other universes.