Have we made an object that could travel at at least 1% the speed of light? – Anadi, age 14, Jammu and Kashmir, India Light is fast. In fact, it is the fastest thing that exists, and a law of the ...

I don’t know, ask Erwin Schrödinger. He was a relative of mine on my mother’s side. He told her mum, but she couldn’t understand it either. We’ve been in the dark ever since. The laws of the universe ...

I am always drawn to the Large Hadron Collider when considering questions like this. The LHC has a diameter of about 8.5 kilometres. When operating, it uses the equivalent of about a third of the ...