For many, to live in a universe that may have no purpose, and no creator, is unthinkable.

The ultimate goal of physicists is to arrive at an equation that explains everything and could fit on a t-shirt. That may happen but the t-shirt would have to be 10-dimensional.

You are all stardust.

We now know that we are more insignificant than we ever imagined. If you get rid of everything we see, the universe is essentially the same. We constitute a 1 percent bit of pollution in a universe . . . we are completely irrelevant.

For many, to live in a universe that may have no purpose, and no creator, is unthinkable.

The universe is the way it is, whether we like it or not.

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