"

Empty space is a boiling, bubbling brew of virtual particles that pop in and out of existence in a time scale so short that you can't even measure the...more

"

It's hard to imagine a more extraordinary claim than that some hidden intelligence created a universe of more than a hundred billion galaxies, each co...more

"

Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It ...more

"

More often than you might think, teaching science is inseparable from teaching doubt.

"

I've told you two things : First, you're much more insignificant than you ever imagined and second, the future is miserable. But you should be happy, ...more

"

The illusion of purpose and design is perhaps the most pervasive illusion about nature that science has to confront on a daily basis.

"

The universe has a much greater imagination than we do, which is why the real story of the universe is far more interesting than any of the fairy tale...more

"

Metaphysical speculation is independent of the physical validity of the Big Bang itself and is irrelevant to our understanding of it.

"

[I]n science we have to be particularly cautious about 'why' questions. When we ask, 'Why?' we usually mean 'How?' If we can answer the latter, that g...more

"

Now, almost one hundred years later, it is difficult to fully appreciate how much our picture of the universe has changed in the span of a single huma...more

"

Of course, supernatural acts are what miracles are all about. They are, after all, precisely those things that circumvent the laws of nature. A god wh...more

"

If we wish to draw philosophical conclusions about our own existence, our significance, and the significance of the universe itself, our conclusions s...more

"

In 5 billion years, the expansion of the universe will have progressed to the point where all other galaxies will have receded beyond detection. Indee...more

"

For most people, the central questions of existence ultimately come down to transcendental ones: Why is there a universe at all? Why are we here?Whate...more