The number of larger-aperture telescopes is growing, but size isn't all that matters in a research telescope. Also important is how much of the sky the telescope can clearly image. A telescope used by Indiana University astronomers and their colleagues at Kitt Peak National Observatory near Tucson, Ariz., is about midway through a major improvement -- the addition of a new kind of camera that will allow scientists to record the telescope's entire exceptionally wide field of view for the first time. [ Visit Website ]