Science isn't just about solving this or that puzzle. It's about understanding how the world works: the whole world from the vastness of the cosmos to the particularity of an individual human life. It's worth thinking about how all the different ways we have to talk about the world manage to fit together.

A full understanding of what happens in our everyday lives needs to take into account what happened at the Big Bang. And not only is that intrinsically interesting and just kind of cool to think about, but it's also a mystery that is not given much attention by working scientists; it's a little bit underappreciated.

The idea that time is an illusion is an old one, predating any Times Square ball drop or champagne celebrations. It reaches back to the days of Heraclitus and Parmenides, pre-Socratic thinkers who are staples of introductory philosophy courses.

If time travel were possible, you still wouldn't be able to change the past - it's already happened!

The enthusiasm around carbon capture and sequestration was probably greater before the shale-gas discovery and the low prices were so prevalent.

Even before the discovery of copper South Australia had turned the corner.

Most of us who become experimental physicists do so for two reasons; we love the tools of physics because to us they have intrinsic beauty, and we dream of finding new secrets of nature as important and as exciting as those uncovered by our scientific heroes.

It is even more so when it comes to Iraq, which is a large Arab country with scientific, material, and human resources and is able to accomplish, at the least, what Lebanon accomplished, and more.