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

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

Astronomers ought to be able to ask fundamental questions without accelerators

There are still so many questions to answer. When you look at any part of the universe, you have to feel humbled.

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

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