... Where did all the stars go? ... This exotic system - thought to be a stellar mass black hole consuming matter from a companion star - was discovered only last year as a flaring celestial x-ray source. ... Side by side, two x-ray stars greeted astronomers in this false-color Chandra Observatory x-ray image of a region near the core of globular star cluster M15. ... Currently referred to only as the Space Infrared Telescope Facility (SIRTF), NASA seeks to add something more significant. ... June 2002 ...