The reason there have been a hundred or so National Lottery jackpot-winners is that the draw has taken place once or twice a week for the past couple of years. Alas, usually only one or two people win each time.
In contrast, a smallish asteroid hits the Earth only about once in 500,000 years, but would kill about a quarter of the global population in one go. Taking the long-term average, the odds of this happening to any one of us in our lifetime are indeed greater than those of winning the lottery.
Dr DAVID A ROTHERY
Department of Earth Sciences
The Open University
Milton Keynes, BuckinghamshireReuse content