I've just got in and switched on the TV and there's a live NASA press conference on Sky News announcing that images takin by the Global Surveyor satellite orbiting Mars show evidence of the presence of water flowing on the surface of the planet.

This is exciting; but somewhat puzzling - I always thought that the surface of Mars is to cold for liquid water to exist (it would be ice). Maybe it's there because of volcanic activity?...Maybe this water contains microbial life? Who knows.

A mathematician, a statistician and an accountant apply for the same
job. The interviewer calls in the mathematician and asks "What do two
plus two equal?"The mathemetician replies "Four."
The interviewer asks "Four, exactly?"
The mathematician looks at the interviewer incredulously and says "Yes,
four, exactly."Then the interviewer calls in the statistician and asks
the same
question "What do two plus two equal?"
The statistician says "On average, four - give or take ten percent, but
on average, four."
Then the interviewer calls in the accountant and poses the same question
"What do two plus two equal?"
The accountant gets up, locks the door, closes the shade, sits down next
to the interviewer and says "What do you want it to equal?"