Quotes About Cosmology

These two Bell Lab scientists had discovered the afterglow from the Big Bang fireball explosion!

This light is no longer visible because its wavelength has been stretched by the expanding universe to wavelengths slightly shorter than those produced by a microwave oven. But the heat can still be detected.

For nothing comes from nothing; nothing ever could.

This expanding universe is the second line of scientific evidence that the universe had a beginning.

It's also important to understand that the universe did not emerge from existing material but from nothing—there was no matter before the Big Bang. In fact, chronologically, there was no "before" the Big Bang because there are no "befores" without time, and there was no time until the Big Bang.

Time, space, and matter came into existence at the Big Bang.

Edwin Hubble looked through his telescope more than a decade later that scientists finally confirmed that the universe is expanding and that it's expanding from a single point.

The Pleroma plays a central role the Gnostic cosmology. The Pleroma has a physical location in the astronomical mythology of Gnosticism; it is situated in the center of the Milky Way galaxy.

Nothing within the universe itself can exist to explain the fact that it exists.

M-theory is the unified theory Einstein was hoping to find.

I came to realise that string theory offers us the best hope of finding a unified theory of all matter and forces.

Every string theory that's been written down says the speed of light is universal. But other ideas about quantum gravity predict the speed of light has actually increased.

Do you realize that if you fall into a black hole, you will see the entire future of the Universe unfold in front of you in a matter of moments and you will emerge into another space-time created by the singularity of the black hole you just fell into?

Physicists explain creation by telling us that the universe began with the Big Bang, an intense energy singularity that continued expanding. But who created the singularity?

Up until the 1920s, everyone thought the universe was essentially static and unchanging in time.

We are the product of quantum fluctuations in the very early universe.

The geometry, the content, and the fate of the universe are all intricately linked. If you know two, you can deduce the third.

For years, my early work with Roger Penrose seemed to be a disaster for science. It showed that the universe must have begun with a singularity, if Einstein's general theory of relativity is correct. That appeared to indicate that science could not predict how the universe would begin.

Relativity can, for instance, explain that the universe had once been clumped into a dense fireball. But it can never explain how matter actually behaved.

The arrow of time doesn't move forward forever. There's a phase in the history of the universe where you go from low entropy to high entropy. But then, once you reach the locally maximum entropy you can get to, there's no more arrow of time.

One of the great challenges of modern cosmology is to discover what the geometry of the universe really is.

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe?

If you consider the universe one second after the Big Bang, the expansion rate would have to have been just right to an accuracy of 15 decimal places, or else the universe would really not work.

We don't have a solid theory of how the universe originated, but that doesn't mean we have to invoke a deity.