THE CHALLENGE: We see so much of the world around us at the large scale, but never really think about the complexity taking place at the atomic level. So it is, for example, with bone formation. A central part of human life, bones are made up of calcium phosphate molecules that come together to form...

THE CHALLENGE: How do stars form? In clouds of gas millions of kilometres across, over millions of years, how do stars form? We know that gravity and electromagnetism and chemistry, pulling together vast clouds of gas, eventually lead to the burning balls of Hydrogen and Helium that we can see in...

THE CHALLENGE: Satellites have been orbiting the earth for decades, all the while taking pictures of the ground below. The pictures they take get processed and stored, and after a while, archived. With some clever thinking, we can make sure to use the full value of those image archives. The...

THE CHALLENGE: Where did modern humans first come from? Our development was determined by a combination of genetics, environment and climate, forces acting in concert over the millennia to lead us to where we are today. Those same forces now help us reconstruct the paths both physical and genetic...