When: Fri., May 13, 2 p.m. and Wed., May 25, 6:30 p.m. 2011
Members of the Tucson Amateur Astronomy Association present a program on comets and their composition at 6:30 p.m., Wednesday, May 25, at Eckstron-Columbus Branch Library (4350 E. 22nd St., 594-5285). Free. Call for more information.
