In an obscure Arizona canyon, I saw ancient petroglyphs on cliff walls that are pierced by sunlight on the day of the summer solstice. They were no accident.

Chileans got dressed up for a Gay Pride parade, cricket players from Australia and West Indies faced off on the Caribbean ...

Maths boffins say that you only need to be in a room with 23 other people before the probability that one of them shares a birthday is over 50 per cent. That seems like too low a number because it is ...