For many years, astronomers have been puzzled by something missing in the Milky Way galaxy: exploding stars. Supernovas are supposed to appear two or three times every century, but none have been seen since the year 1680. Where are they? At long last, one of the "missing supernovas" has been found.
FULL STORY at
http://science.nasa.gov/headlines/y2008/14may_galactichunt.htm?list1052465
