For the astronomically inclined there have been interesting goings on in the constellation of Scorpio these last three years. The star Delta Scorpii, a constant magnitude 2.3 for as long as anyone can remember, changed habits in July 2000. It has been a variable star ever since and not only that, seems to get a bit brighter on each cycle. It is now just a hair under becoming a first magnitude star. That means it is nearly bright enough to be seen in Manhattan and London.
As to exactly what is going on, no one seems quite sure, but it shows the sky is a changeable thing even on a human timescale.