could be just round the corner. Honorary astronomer royal, Martin Rees has estimated the odds of an apocolyptic disaster striking the Earth at about 50/50. He thinks the biggest problems could be man made rather than natural. This sounds entirely plausible and somewhat worrying, not least if like me, you believe that Rees has neglected to take into account the Wubble-you factor. Thanks to Julian O for pointing this article out to me.