Wednesday, October 29, 2003 FAll COLLOQUIA 2003 DEPARTMENT OF PHYSICS UNIVERSITY OF MASSACHUSETTS at LOWELL Most colloquia are held in Olney 218; refreshments at 3:30 p.m and the colloquium at 4:00 p.m. Colloquia coordinator: Professor Albert Altman "Gravitational Lensing: Multiple Images and Caustics" Professor Arlie Petters MIT Center for Space Research and Duke University