by Mike Krumboltz Ever try to count all the stars in the sky? Don't. Scientists recently announced that there may be a billion (that's with a "b") more stars out there than they originally thought. A buzzy article from the Discovery News explains that astronomers "may have underestimated the tally of galaxies in some parts of the universe by as much as 90 percent." How could sky watchers have missed so many stars? Apparently,