Aside from communications satellites, space is devoid of industry.

I cannot stress often enough that what science is all about is not proving things to be true but proving them to be false.

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

The one experience that I hope every student has at some point in their lives is to have some belief you profoundly, deeply hold, proved to be wrong because that is the most eye-opening experience you can have, and as a scientist, to me, is the most exciting experience I can ever have.

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

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

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 them.