the sky is falling!

According to the BBC

"Nasa says there's a one in 3,200 chance that a piece will hit a person somewhere on the planet but for one person specifically the risk is one in 21 trillion."

so the chances are high you won't be among the injured or dead when the Upper Atmosphere Research Satellite crashes to earth later today. Fear not because

It seems likely that UARS will avoid areas inhabited by humans, but the experience will be something of a dress rehearsal for a greater danger coming in November.

A German satellite telescope called Rosat is expected to re-enter with much bigger pieces, including a very large lens, still intact.

So a bit like the Euromillions rollover jackpot then.