We have a remarkably complete picture in many ways - and it could be that we're not accounting for something that's almost three-quarters of the entire universe

I was one of those kids who always thought that we should know how the world works around us

Astronomers ought to be able to ask fundamental questions without accelerators

It's an unusual opportunity, a chance for so many people to share in the excitement and the fun of the fact that we may be on to hints as to what the Universe is made out of. I guess the whole point of a prize like this is to be able to get that out into the community

Your job as a scientist is to figure out how you're fooling yourself.

It seemed like my favourite kind of job - a wonderful chance to ask something absolutely fundamental: the fate of the Universe and whether the Universe was infinite or not

So it's possible that someday, by understanding a little bit more about how the world works, it will come back to help us in some other way that will be surprising