Prof. Bruce Hrivnak has Prof. Bruce Hrivnak, Physics and Astronomy, co-authored a paper which appeared in the 1 December 1998 issue of the Astrophysical Journal. The paper, entitled "Hubble Space Telescope Imaging of IRAS 17441-2411: A Case Study of a Bipolar Nebula with a Circumstellar Disk," was written together with three astronomers from the University of Calgary. This is their second in a series of papers that describe their Hubble images of the gas shells ejected by dying stars. (Click here to view an image of this nebula, which they named the "Silkworm Nebula".)