Sun Microsystems of Sunnyvale, Calif., has donated $195,000 in major computer equipment to the University of Colorado at BoulderÂ’s space program that is expected to strengthen CUÂ’s already formidable international role in astrophysics. The donation includes 13 new workstations, two computer servers and two state-of-the-art disk arrays. The Sun equipment will be used by undergraduates, graduate students, postdoctoral students and faculty, said Michael Shull, chair of the astrophysical and planetary sciences department.