The universe has its secrets. Extra dimensions of space might be one of them. If so, the universe has been hiding those dimensions, protecting them, keeping them coyly under wraps. From a casual glance, you would never suspect a thing.

I considered going into business or becoming a lawyer - not for the money, but for the thrill of problem-solving.

One of the nice things about math and science is it’s obvious, you get the answer or you don’t get the answer.

We certainly don't yet know all the answers. But the universe is about to be pried open.

All the normal matter in the Milky Way disc is denser than the dark matter that surrounds it.

When it comes to the world around us, is there any choice but to explore?

I did not set out to explain the extinction of the dinosaurs. I'm a particle physicist, and I was actually thinking about dark matter along with some collaborators.