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

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

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

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

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

I will say that growing up as a kid in an urban environment and having lived in cities all my life, the one achievement that everyone can look forward to is getting the perfect parking spot