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

I've had various experiences where I've been called by Hollywood studios to look at a script or comment on various scientific ideas that they're trying to inject into a story.

I was holding [my four-year-old daughter] and I said, 'Sophia, I love you more than anything in the universe.' And she turned to me and said, 'Daddy, universe or multiverse?'

I enjoy reading blogs, but am not interested in having my spurious thoughts out there.

I may be a Jewish scientist, but I would be tickled silly if one day I were reincarnated as a Baptist preacher.

I can assure you that no string theorist would be interested in working on string theory if it were somehow permanently beyond testability. That would no longer be doing science.

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.