Science is a way of life. Science is a perspective. Science is the process that takes us from confusion to understanding in a manner that's precise, predictive and reliable - a transformation, for those lucky enough to experience it, that is empowering and emotional.

Sometimes nature guards her secrets with the unbreakable grip of physical law. Sometimes the true nature of reality beckons from just beyond the horizon.

I've seen children's eyes light up when I tell them about black holes and the Big Bang.

The pinpoints of starlight we see with the naked eye are photons that have been streaming toward us for a few years or a few thousand.

Our eyes only see the big dimensions, but beyond those there are others that escape detection because they are so small.

When you know the answer you want, it is often all too easy to figure out a way of getting it.

I think the relationship between memory and time is a very deep and tricky one, to tell you the truth. I don't consider memory another sense. I do consider memory that which allows us to think that time flows.