You might expect gravity would slow it down, but it's just expanding faster and faster

From our point of view, the most exciting thing would be if we discovered something really fundamental in our understanding was just off a bit - and that now we have a chance to revisit it

As a scientist, you feel a sense of team spirit for your country but you also have a sense of team spirit for the international community.

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

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

It is a tough choice between ending up in the cold or ending up in a fiery blast.

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