## geometry

**Mario Livio**explains how not only shapes, but also laws of nature can be symmetrical, and how this aids our understanding of the universe.

**David Acheson**? The truth, he says, is that most of them have never been anywhere near it, and that mathematicians could do more to change this perception - perhaps by emphasising the element of surprise that so often accompanies mathematics at its best.

- Plus looks different! - Redesigning the website
- Beauty is truth, truth beauty - The aesthetics of mathematics
- Readers' corner - Rolling with money revisited: The Pyramid Puzzle

**J.V. Field**continues our series on the origins of proof with an examination of Kepler's astronomy.