There may be many Big Bangs that happened at various and far-flung locations, each creating its own swelling, spatial expanse, each creating a universe - our universe being the result of only one of those Big Bangs.

So many galaxies, so many planets out there in the universe circling so many stars... it just feels like there's a very good chance that there is another Earth-like planet out there that is able to support some kind of life similar to what we're familiar with.

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

All you are is a bag of particles acting out the laws of physics. That to me is pretty clear.

I’ve spent something like 17 years working on a theory for which there is essentially no direct experimental support.

When kids look up to great scientists the way they do to great musicians and actors, civilization will jump to the next level

I believe that through its rational evaluation of truth and indifference to personal belief, science transcends religious and political divisions and so does bind us into a greater, more resilient whole.