What goes up must come down — or does it? Find out how to cheat gravity with Julian Havil.
  • The Fields Medals: Maths in the media
  • Plus new writers award: last chance to enter
  • Readers' corner: Why is nim easy and chess hard?
How to keep up the suspense
On the 25th of May 1997 a dramatic collision tore a hole into the space station Mir and sent it hurtling through space. As NASA astronaut Michael Foale tells Plus, the fate of Mir and its crew hinged on a classical set of equations.
In last issue's Graphical methods I Phil Wilson used maths to predict the outcome of a cold war in slug world. In this self-contained article he looks at slug world after the disaster: with only a few survivors and all infra-structure destroyed, which species will take root and how will they develop? Graphs can tell it all.